050bf39d85
matching function, creates a hashmap the specialises the case of keys that simply check pointer equality. I measure an average ~1% improvement on Octane code-load. Review-Url: https://codereview.chromium.org/2369963002 Cr-Commit-Position: refs/heads/master@{#39920}
3112 lines
111 KiB
C++
3112 lines
111 KiB
C++
// Copyright 2011 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Tests for heap profiler
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#include <ctype.h>
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#include <memory>
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#include "src/v8.h"
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#include "include/v8-profiler.h"
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#include "src/base/hashmap.h"
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#include "src/collector.h"
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#include "src/debug/debug.h"
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#include "src/profiler/allocation-tracker.h"
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#include "src/profiler/heap-profiler.h"
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#include "src/profiler/heap-snapshot-generator-inl.h"
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#include "test/cctest/cctest.h"
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using i::AllocationTraceNode;
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using i::AllocationTraceTree;
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using i::AllocationTracker;
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using i::ArrayVector;
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using i::Vector;
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namespace {
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class NamedEntriesDetector {
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public:
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NamedEntriesDetector()
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: has_A2(false), has_B2(false), has_C2(false) {
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}
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void CheckEntry(i::HeapEntry* entry) {
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if (strcmp(entry->name(), "A2") == 0) has_A2 = true;
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if (strcmp(entry->name(), "B2") == 0) has_B2 = true;
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if (strcmp(entry->name(), "C2") == 0) has_C2 = true;
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}
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void CheckAllReachables(i::HeapEntry* root) {
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v8::base::HashMap visited;
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i::List<i::HeapEntry*> list(10);
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list.Add(root);
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CheckEntry(root);
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while (!list.is_empty()) {
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i::HeapEntry* entry = list.RemoveLast();
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i::Vector<i::HeapGraphEdge*> children = entry->children();
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for (int i = 0; i < children.length(); ++i) {
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if (children[i]->type() == i::HeapGraphEdge::kShortcut) continue;
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i::HeapEntry* child = children[i]->to();
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v8::base::HashMap::Entry* entry = visited.LookupOrInsert(
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reinterpret_cast<void*>(child),
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static_cast<uint32_t>(reinterpret_cast<uintptr_t>(child)));
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if (entry->value)
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continue;
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entry->value = reinterpret_cast<void*>(1);
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list.Add(child);
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CheckEntry(child);
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}
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}
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}
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bool has_A2;
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bool has_B2;
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bool has_C2;
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};
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} // namespace
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static const v8::HeapGraphNode* GetGlobalObject(
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const v8::HeapSnapshot* snapshot) {
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CHECK_EQ(2, snapshot->GetRoot()->GetChildrenCount());
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// The 0th-child is (GC Roots), 1st is the user root.
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const v8::HeapGraphNode* global_obj =
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snapshot->GetRoot()->GetChild(1)->GetToNode();
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CHECK_EQ(0, strncmp("Object", const_cast<i::HeapEntry*>(
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reinterpret_cast<const i::HeapEntry*>(global_obj))->name(), 6));
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return global_obj;
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}
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static const v8::HeapGraphNode* GetProperty(const v8::HeapGraphNode* node,
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v8::HeapGraphEdge::Type type,
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const char* name) {
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for (int i = 0, count = node->GetChildrenCount(); i < count; ++i) {
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const v8::HeapGraphEdge* prop = node->GetChild(i);
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v8::String::Utf8Value prop_name(prop->GetName());
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if (prop->GetType() == type && strcmp(name, *prop_name) == 0)
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return prop->GetToNode();
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}
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return NULL;
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}
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static bool HasString(const v8::HeapGraphNode* node, const char* contents) {
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for (int i = 0, count = node->GetChildrenCount(); i < count; ++i) {
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const v8::HeapGraphEdge* prop = node->GetChild(i);
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const v8::HeapGraphNode* node = prop->GetToNode();
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if (node->GetType() == v8::HeapGraphNode::kString) {
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v8::String::Utf8Value node_name(node->GetName());
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if (strcmp(contents, *node_name) == 0) return true;
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}
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}
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return false;
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}
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// Check that snapshot has no unretained entries except root.
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static bool ValidateSnapshot(const v8::HeapSnapshot* snapshot, int depth = 3) {
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i::HeapSnapshot* heap_snapshot = const_cast<i::HeapSnapshot*>(
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reinterpret_cast<const i::HeapSnapshot*>(snapshot));
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v8::base::HashMap visited;
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i::List<i::HeapGraphEdge>& edges = heap_snapshot->edges();
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for (int i = 0; i < edges.length(); ++i) {
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v8::base::HashMap::Entry* entry = visited.LookupOrInsert(
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reinterpret_cast<void*>(edges[i].to()),
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static_cast<uint32_t>(reinterpret_cast<uintptr_t>(edges[i].to())));
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uint32_t ref_count = static_cast<uint32_t>(
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reinterpret_cast<uintptr_t>(entry->value));
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entry->value = reinterpret_cast<void*>(ref_count + 1);
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}
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uint32_t unretained_entries_count = 0;
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i::List<i::HeapEntry>& entries = heap_snapshot->entries();
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for (int i = 0; i < entries.length(); ++i) {
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v8::base::HashMap::Entry* entry = visited.Lookup(
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reinterpret_cast<void*>(&entries[i]),
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static_cast<uint32_t>(reinterpret_cast<uintptr_t>(&entries[i])));
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if (!entry && entries[i].id() != 1) {
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entries[i].Print("entry with no retainer", "", depth, 0);
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++unretained_entries_count;
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}
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}
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return unretained_entries_count == 0;
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}
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TEST(HeapSnapshot) {
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LocalContext env2;
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v8::HandleScope scope(env2->GetIsolate());
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v8::HeapProfiler* heap_profiler = env2->GetIsolate()->GetHeapProfiler();
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CompileRun(
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"function A2() {}\n"
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"function B2(x) { return function() { return typeof x; }; }\n"
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"function C2(x) { this.x1 = x; this.x2 = x; this[1] = x; }\n"
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"var a2 = new A2();\n"
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"var b2_1 = new B2(a2), b2_2 = new B2(a2);\n"
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"var c2 = new C2(a2);");
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const v8::HeapSnapshot* snapshot_env2 = heap_profiler->TakeHeapSnapshot();
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CHECK(ValidateSnapshot(snapshot_env2));
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const v8::HeapGraphNode* global_env2 = GetGlobalObject(snapshot_env2);
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// Verify, that JS global object of env2 has '..2' properties.
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const v8::HeapGraphNode* a2_node =
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GetProperty(global_env2, v8::HeapGraphEdge::kProperty, "a2");
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CHECK(a2_node);
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CHECK(GetProperty(global_env2, v8::HeapGraphEdge::kProperty, "b2_1"));
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CHECK(GetProperty(global_env2, v8::HeapGraphEdge::kProperty, "b2_2"));
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CHECK(GetProperty(global_env2, v8::HeapGraphEdge::kProperty, "c2"));
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NamedEntriesDetector det;
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det.CheckAllReachables(const_cast<i::HeapEntry*>(
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reinterpret_cast<const i::HeapEntry*>(global_env2)));
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CHECK(det.has_A2);
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CHECK(det.has_B2);
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CHECK(det.has_C2);
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}
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TEST(HeapSnapshotObjectSizes) {
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LocalContext env;
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v8::HandleScope scope(env->GetIsolate());
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v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
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// -a-> X1 --a
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// x -b-> X2 <-|
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CompileRun(
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"function X(a, b) { this.a = a; this.b = b; }\n"
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"x = new X(new X(), new X());\n"
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"dummy = new X();\n"
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"(function() { x.a.a = x.b; })();");
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const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
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CHECK(ValidateSnapshot(snapshot));
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const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
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const v8::HeapGraphNode* x =
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GetProperty(global, v8::HeapGraphEdge::kProperty, "x");
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CHECK(x);
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const v8::HeapGraphNode* x1 =
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GetProperty(x, v8::HeapGraphEdge::kProperty, "a");
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CHECK(x1);
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const v8::HeapGraphNode* x2 =
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GetProperty(x, v8::HeapGraphEdge::kProperty, "b");
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CHECK(x2);
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// Test sizes.
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CHECK_NE(0, static_cast<int>(x->GetShallowSize()));
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CHECK_NE(0, static_cast<int>(x1->GetShallowSize()));
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CHECK_NE(0, static_cast<int>(x2->GetShallowSize()));
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}
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TEST(BoundFunctionInSnapshot) {
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LocalContext env;
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v8::HandleScope scope(env->GetIsolate());
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v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
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CompileRun(
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"function myFunction(a, b) { this.a = a; this.b = b; }\n"
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"function AAAAA() {}\n"
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"boundFunction = myFunction.bind(new AAAAA(), 20, new Number(12)); \n");
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const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
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CHECK(ValidateSnapshot(snapshot));
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const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
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const v8::HeapGraphNode* f =
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GetProperty(global, v8::HeapGraphEdge::kProperty, "boundFunction");
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CHECK(f);
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CHECK(v8_str("native_bind")->Equals(env.local(), f->GetName()).FromJust());
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const v8::HeapGraphNode* bindings =
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GetProperty(f, v8::HeapGraphEdge::kInternal, "bindings");
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CHECK(bindings);
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CHECK_EQ(v8::HeapGraphNode::kArray, bindings->GetType());
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CHECK_EQ(1, bindings->GetChildrenCount());
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const v8::HeapGraphNode* bound_this =
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GetProperty(f, v8::HeapGraphEdge::kInternal, "bound_this");
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CHECK(bound_this);
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CHECK_EQ(v8::HeapGraphNode::kObject, bound_this->GetType());
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const v8::HeapGraphNode* bound_function =
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GetProperty(f, v8::HeapGraphEdge::kInternal, "bound_function");
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CHECK(bound_function);
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CHECK_EQ(v8::HeapGraphNode::kClosure, bound_function->GetType());
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const v8::HeapGraphNode* bound_argument = GetProperty(
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f, v8::HeapGraphEdge::kShortcut, "bound_argument_1");
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CHECK(bound_argument);
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CHECK_EQ(v8::HeapGraphNode::kObject, bound_argument->GetType());
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}
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TEST(HeapSnapshotEntryChildren) {
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LocalContext env;
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v8::HandleScope scope(env->GetIsolate());
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v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
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CompileRun(
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"function A() { }\n"
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"a = new A;");
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const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
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CHECK(ValidateSnapshot(snapshot));
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const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
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for (int i = 0, count = global->GetChildrenCount(); i < count; ++i) {
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const v8::HeapGraphEdge* prop = global->GetChild(i);
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CHECK_EQ(global, prop->GetFromNode());
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}
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const v8::HeapGraphNode* a =
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GetProperty(global, v8::HeapGraphEdge::kProperty, "a");
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CHECK(a);
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for (int i = 0, count = a->GetChildrenCount(); i < count; ++i) {
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const v8::HeapGraphEdge* prop = a->GetChild(i);
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CHECK_EQ(a, prop->GetFromNode());
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}
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}
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TEST(HeapSnapshotCodeObjects) {
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LocalContext env;
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v8::HandleScope scope(env->GetIsolate());
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v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
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CompileRun(
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"function lazy(x) { return x - 1; }\n"
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"function compiled(x) { return x + 1; }\n"
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"var anonymous = (function() { return function() { return 0; } })();\n"
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"compiled(1)");
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const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
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CHECK(ValidateSnapshot(snapshot));
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const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
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const v8::HeapGraphNode* compiled =
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GetProperty(global, v8::HeapGraphEdge::kProperty, "compiled");
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CHECK(compiled);
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CHECK_EQ(v8::HeapGraphNode::kClosure, compiled->GetType());
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const v8::HeapGraphNode* lazy =
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GetProperty(global, v8::HeapGraphEdge::kProperty, "lazy");
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CHECK(lazy);
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CHECK_EQ(v8::HeapGraphNode::kClosure, lazy->GetType());
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const v8::HeapGraphNode* anonymous =
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GetProperty(global, v8::HeapGraphEdge::kProperty, "anonymous");
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CHECK(anonymous);
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CHECK_EQ(v8::HeapGraphNode::kClosure, anonymous->GetType());
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v8::String::Utf8Value anonymous_name(anonymous->GetName());
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CHECK_EQ(0, strcmp("", *anonymous_name));
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// Find references to code.
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const v8::HeapGraphNode* compiled_code =
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GetProperty(compiled, v8::HeapGraphEdge::kInternal, "shared");
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CHECK(compiled_code);
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const v8::HeapGraphNode* lazy_code =
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GetProperty(lazy, v8::HeapGraphEdge::kInternal, "shared");
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CHECK(lazy_code);
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// Check that there's no strong next_code_link. There might be a weak one
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// but might be not, so we can't check that fact.
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const v8::HeapGraphNode* code =
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GetProperty(compiled_code, v8::HeapGraphEdge::kInternal, "code");
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CHECK(code);
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const v8::HeapGraphNode* next_code_link =
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GetProperty(code, v8::HeapGraphEdge::kInternal, "code");
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CHECK(!next_code_link);
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// Verify that non-compiled code doesn't contain references to "x"
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// literal, while compiled code does. The scope info is stored in FixedArray
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// objects attached to the SharedFunctionInfo.
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bool compiled_references_x = false, lazy_references_x = false;
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for (int i = 0, count = compiled_code->GetChildrenCount(); i < count; ++i) {
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const v8::HeapGraphEdge* prop = compiled_code->GetChild(i);
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const v8::HeapGraphNode* node = prop->GetToNode();
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if (node->GetType() == v8::HeapGraphNode::kArray) {
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if (HasString(node, "x")) {
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compiled_references_x = true;
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break;
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}
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}
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}
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for (int i = 0, count = lazy_code->GetChildrenCount(); i < count; ++i) {
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const v8::HeapGraphEdge* prop = lazy_code->GetChild(i);
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const v8::HeapGraphNode* node = prop->GetToNode();
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if (node->GetType() == v8::HeapGraphNode::kArray) {
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if (HasString(node, "x")) {
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lazy_references_x = true;
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break;
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}
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}
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}
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CHECK(compiled_references_x);
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if (i::FLAG_lazy && !(i::FLAG_ignition && i::FLAG_ignition_eager)) {
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CHECK(!lazy_references_x);
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}
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}
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TEST(HeapSnapshotHeapNumbers) {
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LocalContext env;
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v8::HandleScope scope(env->GetIsolate());
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v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
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CompileRun(
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"a = 1; // a is Smi\n"
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"b = 2.5; // b is HeapNumber");
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const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
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CHECK(ValidateSnapshot(snapshot));
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const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
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CHECK(!GetProperty(global, v8::HeapGraphEdge::kProperty, "a"));
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const v8::HeapGraphNode* b =
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GetProperty(global, v8::HeapGraphEdge::kProperty, "b");
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CHECK(b);
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CHECK_EQ(v8::HeapGraphNode::kHeapNumber, b->GetType());
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}
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TEST(HeapSnapshotSlicedString) {
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LocalContext env;
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v8::HandleScope scope(env->GetIsolate());
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v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
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CompileRun(
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"parent_string = \"123456789.123456789.123456789.123456789.123456789."
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"123456789.123456789.123456789.123456789.123456789."
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"123456789.123456789.123456789.123456789.123456789."
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"123456789.123456789.123456789.123456789.123456789."
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"123456789.123456789.123456789.123456789.123456789."
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"123456789.123456789.123456789.123456789.123456789."
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"123456789.123456789.123456789.123456789.123456789."
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"123456789.123456789.123456789.123456789.123456789.\";"
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"child_string = parent_string.slice(100);");
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const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
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CHECK(ValidateSnapshot(snapshot));
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const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
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const v8::HeapGraphNode* parent_string =
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GetProperty(global, v8::HeapGraphEdge::kProperty, "parent_string");
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CHECK(parent_string);
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const v8::HeapGraphNode* child_string =
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GetProperty(global, v8::HeapGraphEdge::kProperty, "child_string");
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CHECK(child_string);
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CHECK_EQ(v8::HeapGraphNode::kSlicedString, child_string->GetType());
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const v8::HeapGraphNode* parent =
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GetProperty(child_string, v8::HeapGraphEdge::kInternal, "parent");
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CHECK_EQ(parent_string, parent);
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heap_profiler->DeleteAllHeapSnapshots();
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}
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TEST(HeapSnapshotConsString) {
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v8::Isolate* isolate = CcTest::isolate();
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v8::HandleScope scope(isolate);
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v8::Local<v8::ObjectTemplate> global_template =
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v8::ObjectTemplate::New(isolate);
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global_template->SetInternalFieldCount(1);
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LocalContext env(NULL, global_template);
|
|
v8::Local<v8::Object> global_proxy = env->Global();
|
|
v8::Local<v8::Object> global = global_proxy->GetPrototype().As<v8::Object>();
|
|
CHECK_EQ(1, global->InternalFieldCount());
|
|
|
|
i::Factory* factory = CcTest::i_isolate()->factory();
|
|
i::Handle<i::String> first = factory->NewStringFromStaticChars("0123456789");
|
|
i::Handle<i::String> second = factory->NewStringFromStaticChars("0123456789");
|
|
i::Handle<i::String> cons_string =
|
|
factory->NewConsString(first, second).ToHandleChecked();
|
|
|
|
global->SetInternalField(0, v8::ToApiHandle<v8::String>(cons_string));
|
|
|
|
v8::HeapProfiler* heap_profiler = isolate->GetHeapProfiler();
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global_node = GetGlobalObject(snapshot);
|
|
|
|
const v8::HeapGraphNode* string_node =
|
|
GetProperty(global_node, v8::HeapGraphEdge::kInternal, "0");
|
|
CHECK(string_node);
|
|
CHECK_EQ(v8::HeapGraphNode::kConsString, string_node->GetType());
|
|
|
|
const v8::HeapGraphNode* first_node =
|
|
GetProperty(string_node, v8::HeapGraphEdge::kInternal, "first");
|
|
CHECK_EQ(v8::HeapGraphNode::kString, first_node->GetType());
|
|
|
|
const v8::HeapGraphNode* second_node =
|
|
GetProperty(string_node, v8::HeapGraphEdge::kInternal, "second");
|
|
CHECK_EQ(v8::HeapGraphNode::kString, second_node->GetType());
|
|
|
|
heap_profiler->DeleteAllHeapSnapshots();
|
|
}
|
|
|
|
|
|
TEST(HeapSnapshotSymbol) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun("a = Symbol('mySymbol');\n");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* a =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "a");
|
|
CHECK(a);
|
|
CHECK_EQ(a->GetType(), v8::HeapGraphNode::kSymbol);
|
|
CHECK(v8_str("symbol")->Equals(env.local(), a->GetName()).FromJust());
|
|
const v8::HeapGraphNode* name =
|
|
GetProperty(a, v8::HeapGraphEdge::kInternal, "name");
|
|
CHECK(name);
|
|
CHECK(v8_str("mySymbol")->Equals(env.local(), name->GetName()).FromJust());
|
|
}
|
|
|
|
|
|
void CheckSimdSnapshot(const char* program, const char* var_name) {
|
|
i::FLAG_harmony_simd = true;
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun(program);
|
|
// The TakeHeapSnapshot function does not do enough GCs to ensure
|
|
// that all garbage is collected. We perform addition GC here
|
|
// to reclaim a floating AllocationSite and to fix the following failure:
|
|
// # Check failed: ValidateSnapshot(snapshot).
|
|
// Stdout:
|
|
// 28 @ 13523 entry with no retainer: /hidden/ system / AllocationSite
|
|
// 44 @ 767 $map: /hidden/ system / Map
|
|
// 44 @ 59 $map: /hidden/ system / Map
|
|
CcTest::CollectAllGarbage(i::Heap::kFinalizeIncrementalMarkingMask);
|
|
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* var =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, var_name);
|
|
CHECK(var);
|
|
CHECK_EQ(var->GetType(), v8::HeapGraphNode::kSimdValue);
|
|
}
|
|
|
|
|
|
TEST(HeapSnapshotSimd) {
|
|
CheckSimdSnapshot("a = SIMD.Float32x4();\n", "a");
|
|
CheckSimdSnapshot("a = SIMD.Int32x4();\n", "a");
|
|
CheckSimdSnapshot("a = SIMD.Uint32x4();\n", "a");
|
|
CheckSimdSnapshot("a = SIMD.Bool32x4();\n", "a");
|
|
CheckSimdSnapshot("a = SIMD.Int16x8();\n", "a");
|
|
CheckSimdSnapshot("a = SIMD.Uint16x8();\n", "a");
|
|
CheckSimdSnapshot("a = SIMD.Bool16x8();\n", "a");
|
|
CheckSimdSnapshot("a = SIMD.Int8x16();\n", "a");
|
|
CheckSimdSnapshot("a = SIMD.Uint8x16();\n", "a");
|
|
CheckSimdSnapshot("a = SIMD.Bool8x16();\n", "a");
|
|
}
|
|
|
|
|
|
TEST(HeapSnapshotWeakCollection) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun(
|
|
"k = {}; v = {}; s = 'str';\n"
|
|
"ws = new WeakSet(); ws.add(k); ws.add(v); ws[s] = s;\n"
|
|
"wm = new WeakMap(); wm.set(k, v); wm[s] = s;\n");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* k =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "k");
|
|
CHECK(k);
|
|
const v8::HeapGraphNode* v =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "v");
|
|
CHECK(v);
|
|
const v8::HeapGraphNode* s =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "s");
|
|
CHECK(s);
|
|
|
|
const v8::HeapGraphNode* ws =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "ws");
|
|
CHECK(ws);
|
|
CHECK_EQ(v8::HeapGraphNode::kObject, ws->GetType());
|
|
CHECK(v8_str("WeakSet")->Equals(env.local(), ws->GetName()).FromJust());
|
|
|
|
const v8::HeapGraphNode* ws_table =
|
|
GetProperty(ws, v8::HeapGraphEdge::kInternal, "table");
|
|
CHECK_EQ(v8::HeapGraphNode::kArray, ws_table->GetType());
|
|
CHECK_GT(ws_table->GetChildrenCount(), 0);
|
|
int weak_entries = 0;
|
|
for (int i = 0, count = ws_table->GetChildrenCount(); i < count; ++i) {
|
|
const v8::HeapGraphEdge* prop = ws_table->GetChild(i);
|
|
if (prop->GetType() != v8::HeapGraphEdge::kWeak) continue;
|
|
if (k->GetId() == prop->GetToNode()->GetId()) {
|
|
++weak_entries;
|
|
}
|
|
}
|
|
CHECK_EQ(1, weak_entries);
|
|
const v8::HeapGraphNode* ws_s =
|
|
GetProperty(ws, v8::HeapGraphEdge::kProperty, "str");
|
|
CHECK(ws_s);
|
|
CHECK_EQ(s->GetId(), ws_s->GetId());
|
|
|
|
const v8::HeapGraphNode* wm =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "wm");
|
|
CHECK(wm);
|
|
CHECK_EQ(v8::HeapGraphNode::kObject, wm->GetType());
|
|
CHECK(v8_str("WeakMap")->Equals(env.local(), wm->GetName()).FromJust());
|
|
|
|
const v8::HeapGraphNode* wm_table =
|
|
GetProperty(wm, v8::HeapGraphEdge::kInternal, "table");
|
|
CHECK_EQ(v8::HeapGraphNode::kArray, wm_table->GetType());
|
|
CHECK_GT(wm_table->GetChildrenCount(), 0);
|
|
weak_entries = 0;
|
|
for (int i = 0, count = wm_table->GetChildrenCount(); i < count; ++i) {
|
|
const v8::HeapGraphEdge* prop = wm_table->GetChild(i);
|
|
if (prop->GetType() != v8::HeapGraphEdge::kWeak) continue;
|
|
const v8::SnapshotObjectId to_node_id = prop->GetToNode()->GetId();
|
|
if (to_node_id == k->GetId() || to_node_id == v->GetId()) {
|
|
++weak_entries;
|
|
}
|
|
}
|
|
CHECK_EQ(2, weak_entries);
|
|
const v8::HeapGraphNode* wm_s =
|
|
GetProperty(wm, v8::HeapGraphEdge::kProperty, "str");
|
|
CHECK(wm_s);
|
|
CHECK_EQ(s->GetId(), wm_s->GetId());
|
|
}
|
|
|
|
|
|
TEST(HeapSnapshotCollection) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun(
|
|
"k = {}; v = {}; s = 'str';\n"
|
|
"set = new Set(); set.add(k); set.add(v); set[s] = s;\n"
|
|
"map = new Map(); map.set(k, v); map[s] = s;\n");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* k =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "k");
|
|
CHECK(k);
|
|
const v8::HeapGraphNode* v =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "v");
|
|
CHECK(v);
|
|
const v8::HeapGraphNode* s =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "s");
|
|
CHECK(s);
|
|
|
|
const v8::HeapGraphNode* set =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "set");
|
|
CHECK(set);
|
|
CHECK_EQ(v8::HeapGraphNode::kObject, set->GetType());
|
|
CHECK(v8_str("Set")->Equals(env.local(), set->GetName()).FromJust());
|
|
|
|
const v8::HeapGraphNode* set_table =
|
|
GetProperty(set, v8::HeapGraphEdge::kInternal, "table");
|
|
CHECK_EQ(v8::HeapGraphNode::kArray, set_table->GetType());
|
|
CHECK_GT(set_table->GetChildrenCount(), 0);
|
|
int entries = 0;
|
|
for (int i = 0, count = set_table->GetChildrenCount(); i < count; ++i) {
|
|
const v8::HeapGraphEdge* prop = set_table->GetChild(i);
|
|
const v8::SnapshotObjectId to_node_id = prop->GetToNode()->GetId();
|
|
if (to_node_id == k->GetId() || to_node_id == v->GetId()) {
|
|
++entries;
|
|
}
|
|
}
|
|
CHECK_EQ(2, entries);
|
|
const v8::HeapGraphNode* set_s =
|
|
GetProperty(set, v8::HeapGraphEdge::kProperty, "str");
|
|
CHECK(set_s);
|
|
CHECK_EQ(s->GetId(), set_s->GetId());
|
|
|
|
const v8::HeapGraphNode* map =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "map");
|
|
CHECK(map);
|
|
CHECK_EQ(v8::HeapGraphNode::kObject, map->GetType());
|
|
CHECK(v8_str("Map")->Equals(env.local(), map->GetName()).FromJust());
|
|
|
|
const v8::HeapGraphNode* map_table =
|
|
GetProperty(map, v8::HeapGraphEdge::kInternal, "table");
|
|
CHECK_EQ(v8::HeapGraphNode::kArray, map_table->GetType());
|
|
CHECK_GT(map_table->GetChildrenCount(), 0);
|
|
entries = 0;
|
|
for (int i = 0, count = map_table->GetChildrenCount(); i < count; ++i) {
|
|
const v8::HeapGraphEdge* prop = map_table->GetChild(i);
|
|
const v8::SnapshotObjectId to_node_id = prop->GetToNode()->GetId();
|
|
if (to_node_id == k->GetId() || to_node_id == v->GetId()) {
|
|
++entries;
|
|
}
|
|
}
|
|
CHECK_EQ(2, entries);
|
|
const v8::HeapGraphNode* map_s =
|
|
GetProperty(map, v8::HeapGraphEdge::kProperty, "str");
|
|
CHECK(map_s);
|
|
CHECK_EQ(s->GetId(), map_s->GetId());
|
|
}
|
|
|
|
TEST(HeapSnapshotMap) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun(
|
|
"function Z() { this.foo = {}; }\n"
|
|
"z = new Z();\n");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* z =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "z");
|
|
CHECK(z);
|
|
const v8::HeapGraphNode* map =
|
|
GetProperty(z, v8::HeapGraphEdge::kInternal, "map");
|
|
CHECK(map);
|
|
CHECK(GetProperty(map, v8::HeapGraphEdge::kInternal, "map"));
|
|
CHECK(GetProperty(map, v8::HeapGraphEdge::kInternal, "prototype"));
|
|
CHECK(GetProperty(map, v8::HeapGraphEdge::kInternal, "back_pointer"));
|
|
CHECK(GetProperty(map, v8::HeapGraphEdge::kInternal, "descriptors"));
|
|
const v8::HeapGraphNode* weak_cell =
|
|
GetProperty(map, v8::HeapGraphEdge::kInternal, "weak_cell_cache");
|
|
CHECK(GetProperty(weak_cell, v8::HeapGraphEdge::kWeak, "value"));
|
|
}
|
|
|
|
TEST(HeapSnapshotInternalReferences) {
|
|
v8::Isolate* isolate = CcTest::isolate();
|
|
v8::HandleScope scope(isolate);
|
|
v8::Local<v8::ObjectTemplate> global_template =
|
|
v8::ObjectTemplate::New(isolate);
|
|
global_template->SetInternalFieldCount(2);
|
|
LocalContext env(NULL, global_template);
|
|
v8::Local<v8::Object> global_proxy = env->Global();
|
|
v8::Local<v8::Object> global = global_proxy->GetPrototype().As<v8::Object>();
|
|
CHECK_EQ(2, global->InternalFieldCount());
|
|
v8::Local<v8::Object> obj = v8::Object::New(isolate);
|
|
global->SetInternalField(0, v8_num(17));
|
|
global->SetInternalField(1, obj);
|
|
v8::HeapProfiler* heap_profiler = isolate->GetHeapProfiler();
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global_node = GetGlobalObject(snapshot);
|
|
// The first reference will not present, because it's a Smi.
|
|
CHECK(!GetProperty(global_node, v8::HeapGraphEdge::kInternal, "0"));
|
|
// The second reference is to an object.
|
|
CHECK(GetProperty(global_node, v8::HeapGraphEdge::kInternal, "1"));
|
|
}
|
|
|
|
|
|
TEST(HeapSnapshotAddressReuse) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun(
|
|
"function A() {}\n"
|
|
"var a = [];\n"
|
|
"for (var i = 0; i < 10000; ++i)\n"
|
|
" a[i] = new A();\n");
|
|
const v8::HeapSnapshot* snapshot1 = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot1));
|
|
v8::SnapshotObjectId maxId1 = snapshot1->GetMaxSnapshotJSObjectId();
|
|
|
|
CompileRun(
|
|
"for (var i = 0; i < 10000; ++i)\n"
|
|
" a[i] = new A();\n");
|
|
CcTest::CollectAllGarbage(i::Heap::kFinalizeIncrementalMarkingMask);
|
|
|
|
const v8::HeapSnapshot* snapshot2 = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot2));
|
|
const v8::HeapGraphNode* global2 = GetGlobalObject(snapshot2);
|
|
|
|
const v8::HeapGraphNode* array_node =
|
|
GetProperty(global2, v8::HeapGraphEdge::kProperty, "a");
|
|
CHECK(array_node);
|
|
int wrong_count = 0;
|
|
for (int i = 0, count = array_node->GetChildrenCount(); i < count; ++i) {
|
|
const v8::HeapGraphEdge* prop = array_node->GetChild(i);
|
|
if (prop->GetType() != v8::HeapGraphEdge::kElement)
|
|
continue;
|
|
v8::SnapshotObjectId id = prop->GetToNode()->GetId();
|
|
if (id < maxId1)
|
|
++wrong_count;
|
|
}
|
|
CHECK_EQ(0, wrong_count);
|
|
}
|
|
|
|
|
|
TEST(HeapEntryIdsAndArrayShift) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun(
|
|
"function AnObject() {\n"
|
|
" this.first = 'first';\n"
|
|
" this.second = 'second';\n"
|
|
"}\n"
|
|
"var a = new Array();\n"
|
|
"for (var i = 0; i < 10; ++i)\n"
|
|
" a.push(new AnObject());\n");
|
|
const v8::HeapSnapshot* snapshot1 = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot1));
|
|
|
|
CompileRun(
|
|
"for (var i = 0; i < 1; ++i)\n"
|
|
" a.shift();\n");
|
|
|
|
CcTest::CollectAllGarbage(i::Heap::kFinalizeIncrementalMarkingMask);
|
|
|
|
const v8::HeapSnapshot* snapshot2 = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot2));
|
|
|
|
const v8::HeapGraphNode* global1 = GetGlobalObject(snapshot1);
|
|
const v8::HeapGraphNode* global2 = GetGlobalObject(snapshot2);
|
|
CHECK_NE(0u, global1->GetId());
|
|
CHECK_EQ(global1->GetId(), global2->GetId());
|
|
|
|
const v8::HeapGraphNode* a1 =
|
|
GetProperty(global1, v8::HeapGraphEdge::kProperty, "a");
|
|
CHECK(a1);
|
|
const v8::HeapGraphNode* k1 =
|
|
GetProperty(a1, v8::HeapGraphEdge::kInternal, "elements");
|
|
CHECK(k1);
|
|
const v8::HeapGraphNode* a2 =
|
|
GetProperty(global2, v8::HeapGraphEdge::kProperty, "a");
|
|
CHECK(a2);
|
|
const v8::HeapGraphNode* k2 =
|
|
GetProperty(a2, v8::HeapGraphEdge::kInternal, "elements");
|
|
CHECK(k2);
|
|
|
|
CHECK_EQ(a1->GetId(), a2->GetId());
|
|
CHECK_EQ(k1->GetId(), k2->GetId());
|
|
}
|
|
|
|
|
|
TEST(HeapEntryIdsAndGC) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun(
|
|
"function A() {}\n"
|
|
"function B(x) { this.x = x; }\n"
|
|
"var a = new A();\n"
|
|
"var b = new B(a);");
|
|
const v8::HeapSnapshot* snapshot1 = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot1));
|
|
|
|
CcTest::CollectAllGarbage(i::Heap::kFinalizeIncrementalMarkingMask);
|
|
|
|
const v8::HeapSnapshot* snapshot2 = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot2));
|
|
|
|
CHECK_GT(snapshot1->GetMaxSnapshotJSObjectId(), 7000u);
|
|
CHECK(snapshot1->GetMaxSnapshotJSObjectId() <=
|
|
snapshot2->GetMaxSnapshotJSObjectId());
|
|
|
|
const v8::HeapGraphNode* global1 = GetGlobalObject(snapshot1);
|
|
const v8::HeapGraphNode* global2 = GetGlobalObject(snapshot2);
|
|
CHECK_NE(0u, global1->GetId());
|
|
CHECK_EQ(global1->GetId(), global2->GetId());
|
|
const v8::HeapGraphNode* A1 =
|
|
GetProperty(global1, v8::HeapGraphEdge::kProperty, "A");
|
|
CHECK(A1);
|
|
const v8::HeapGraphNode* A2 =
|
|
GetProperty(global2, v8::HeapGraphEdge::kProperty, "A");
|
|
CHECK(A2);
|
|
CHECK_NE(0u, A1->GetId());
|
|
CHECK_EQ(A1->GetId(), A2->GetId());
|
|
const v8::HeapGraphNode* B1 =
|
|
GetProperty(global1, v8::HeapGraphEdge::kProperty, "B");
|
|
CHECK(B1);
|
|
const v8::HeapGraphNode* B2 =
|
|
GetProperty(global2, v8::HeapGraphEdge::kProperty, "B");
|
|
CHECK(B2);
|
|
CHECK_NE(0u, B1->GetId());
|
|
CHECK_EQ(B1->GetId(), B2->GetId());
|
|
const v8::HeapGraphNode* a1 =
|
|
GetProperty(global1, v8::HeapGraphEdge::kProperty, "a");
|
|
CHECK(a1);
|
|
const v8::HeapGraphNode* a2 =
|
|
GetProperty(global2, v8::HeapGraphEdge::kProperty, "a");
|
|
CHECK(a2);
|
|
CHECK_NE(0u, a1->GetId());
|
|
CHECK_EQ(a1->GetId(), a2->GetId());
|
|
const v8::HeapGraphNode* b1 =
|
|
GetProperty(global1, v8::HeapGraphEdge::kProperty, "b");
|
|
CHECK(b1);
|
|
const v8::HeapGraphNode* b2 =
|
|
GetProperty(global2, v8::HeapGraphEdge::kProperty, "b");
|
|
CHECK(b2);
|
|
CHECK_NE(0u, b1->GetId());
|
|
CHECK_EQ(b1->GetId(), b2->GetId());
|
|
}
|
|
|
|
|
|
TEST(HeapSnapshotRootPreservedAfterSorting) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* root1 = snapshot->GetRoot();
|
|
const_cast<i::HeapSnapshot*>(reinterpret_cast<const i::HeapSnapshot*>(
|
|
snapshot))->GetSortedEntriesList();
|
|
const v8::HeapGraphNode* root2 = snapshot->GetRoot();
|
|
CHECK_EQ(root1, root2);
|
|
}
|
|
|
|
|
|
namespace {
|
|
|
|
class TestJSONStream : public v8::OutputStream {
|
|
public:
|
|
TestJSONStream() : eos_signaled_(0), abort_countdown_(-1) {}
|
|
explicit TestJSONStream(int abort_countdown)
|
|
: eos_signaled_(0), abort_countdown_(abort_countdown) {}
|
|
virtual ~TestJSONStream() {}
|
|
virtual void EndOfStream() { ++eos_signaled_; }
|
|
virtual WriteResult WriteAsciiChunk(char* buffer, int chars_written) {
|
|
if (abort_countdown_ > 0) --abort_countdown_;
|
|
if (abort_countdown_ == 0) return kAbort;
|
|
CHECK_GT(chars_written, 0);
|
|
i::Vector<char> chunk = buffer_.AddBlock(chars_written, '\0');
|
|
i::MemCopy(chunk.start(), buffer, chars_written);
|
|
return kContinue;
|
|
}
|
|
virtual WriteResult WriteUint32Chunk(uint32_t* buffer, int chars_written) {
|
|
CHECK(false);
|
|
return kAbort;
|
|
}
|
|
void WriteTo(i::Vector<char> dest) { buffer_.WriteTo(dest); }
|
|
int eos_signaled() { return eos_signaled_; }
|
|
int size() { return buffer_.size(); }
|
|
|
|
private:
|
|
i::Collector<char> buffer_;
|
|
int eos_signaled_;
|
|
int abort_countdown_;
|
|
};
|
|
|
|
class OneByteResource : public v8::String::ExternalOneByteStringResource {
|
|
public:
|
|
explicit OneByteResource(i::Vector<char> string) : data_(string.start()) {
|
|
length_ = string.length();
|
|
}
|
|
virtual const char* data() const { return data_; }
|
|
virtual size_t length() const { return length_; }
|
|
private:
|
|
const char* data_;
|
|
size_t length_;
|
|
};
|
|
|
|
} // namespace
|
|
|
|
TEST(HeapSnapshotJSONSerialization) {
|
|
v8::Isolate* isolate = CcTest::isolate();
|
|
LocalContext env;
|
|
v8::HandleScope scope(isolate);
|
|
v8::HeapProfiler* heap_profiler = isolate->GetHeapProfiler();
|
|
|
|
#define STRING_LITERAL_FOR_TEST \
|
|
"\"String \\n\\r\\u0008\\u0081\\u0101\\u0801\\u8001\""
|
|
CompileRun(
|
|
"function A(s) { this.s = s; }\n"
|
|
"function B(x) { this.x = x; }\n"
|
|
"var a = new A(" STRING_LITERAL_FOR_TEST ");\n"
|
|
"var b = new B(a);");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
|
|
TestJSONStream stream;
|
|
snapshot->Serialize(&stream, v8::HeapSnapshot::kJSON);
|
|
CHECK_GT(stream.size(), 0);
|
|
CHECK_EQ(1, stream.eos_signaled());
|
|
i::ScopedVector<char> json(stream.size());
|
|
stream.WriteTo(json);
|
|
|
|
// Verify that snapshot string is valid JSON.
|
|
OneByteResource* json_res = new OneByteResource(json);
|
|
v8::Local<v8::String> json_string =
|
|
v8::String::NewExternalOneByte(env->GetIsolate(), json_res)
|
|
.ToLocalChecked();
|
|
env->Global()
|
|
->Set(env.local(), v8_str("json_snapshot"), json_string)
|
|
.FromJust();
|
|
v8::Local<v8::Value> snapshot_parse_result = CompileRun(
|
|
"var parsed = JSON.parse(json_snapshot); true;");
|
|
CHECK(!snapshot_parse_result.IsEmpty());
|
|
|
|
// Verify that snapshot object has required fields.
|
|
v8::Local<v8::Object> parsed_snapshot =
|
|
env->Global()
|
|
->Get(env.local(), v8_str("parsed"))
|
|
.ToLocalChecked()
|
|
->ToObject(env.local())
|
|
.ToLocalChecked();
|
|
CHECK(parsed_snapshot->Has(env.local(), v8_str("snapshot")).FromJust());
|
|
CHECK(parsed_snapshot->Has(env.local(), v8_str("nodes")).FromJust());
|
|
CHECK(parsed_snapshot->Has(env.local(), v8_str("edges")).FromJust());
|
|
CHECK(parsed_snapshot->Has(env.local(), v8_str("strings")).FromJust());
|
|
|
|
// Get node and edge "member" offsets.
|
|
v8::Local<v8::Value> meta_analysis_result = CompileRun(
|
|
"var meta = parsed.snapshot.meta;\n"
|
|
"var edge_count_offset = meta.node_fields.indexOf('edge_count');\n"
|
|
"var node_fields_count = meta.node_fields.length;\n"
|
|
"var edge_fields_count = meta.edge_fields.length;\n"
|
|
"var edge_type_offset = meta.edge_fields.indexOf('type');\n"
|
|
"var edge_name_offset = meta.edge_fields.indexOf('name_or_index');\n"
|
|
"var edge_to_node_offset = meta.edge_fields.indexOf('to_node');\n"
|
|
"var property_type ="
|
|
" meta.edge_types[edge_type_offset].indexOf('property');\n"
|
|
"var shortcut_type ="
|
|
" meta.edge_types[edge_type_offset].indexOf('shortcut');\n"
|
|
"var node_count = parsed.nodes.length / node_fields_count;\n"
|
|
"var first_edge_indexes = parsed.first_edge_indexes = [];\n"
|
|
"for (var i = 0, first_edge_index = 0; i < node_count; ++i) {\n"
|
|
" first_edge_indexes[i] = first_edge_index;\n"
|
|
" first_edge_index += edge_fields_count *\n"
|
|
" parsed.nodes[i * node_fields_count + edge_count_offset];\n"
|
|
"}\n"
|
|
"first_edge_indexes[node_count] = first_edge_index;\n");
|
|
CHECK(!meta_analysis_result.IsEmpty());
|
|
|
|
// A helper function for processing encoded nodes.
|
|
CompileRun(
|
|
"function GetChildPosByProperty(pos, prop_name, prop_type) {\n"
|
|
" var nodes = parsed.nodes;\n"
|
|
" var edges = parsed.edges;\n"
|
|
" var strings = parsed.strings;\n"
|
|
" var node_ordinal = pos / node_fields_count;\n"
|
|
" for (var i = parsed.first_edge_indexes[node_ordinal],\n"
|
|
" count = parsed.first_edge_indexes[node_ordinal + 1];\n"
|
|
" i < count; i += edge_fields_count) {\n"
|
|
" if (edges[i + edge_type_offset] === prop_type\n"
|
|
" && strings[edges[i + edge_name_offset]] === prop_name)\n"
|
|
" return edges[i + edge_to_node_offset];\n"
|
|
" }\n"
|
|
" return null;\n"
|
|
"}\n");
|
|
// Get the string index using the path: <root> -> <global>.b.x.s
|
|
v8::Local<v8::Value> string_obj_pos_val = CompileRun(
|
|
"GetChildPosByProperty(\n"
|
|
" GetChildPosByProperty(\n"
|
|
" GetChildPosByProperty("
|
|
" parsed.edges[edge_fields_count + edge_to_node_offset],"
|
|
" \"b\", property_type),\n"
|
|
" \"x\", property_type),"
|
|
" \"s\", property_type)");
|
|
CHECK(!string_obj_pos_val.IsEmpty());
|
|
int string_obj_pos = static_cast<int>(
|
|
string_obj_pos_val->ToNumber(env.local()).ToLocalChecked()->Value());
|
|
v8::Local<v8::Object> nodes_array =
|
|
parsed_snapshot->Get(env.local(), v8_str("nodes"))
|
|
.ToLocalChecked()
|
|
->ToObject(env.local())
|
|
.ToLocalChecked();
|
|
int string_index =
|
|
static_cast<int>(nodes_array->Get(env.local(), string_obj_pos + 1)
|
|
.ToLocalChecked()
|
|
->ToNumber(env.local())
|
|
.ToLocalChecked()
|
|
->Value());
|
|
CHECK_GT(string_index, 0);
|
|
v8::Local<v8::Object> strings_array =
|
|
parsed_snapshot->Get(env.local(), v8_str("strings"))
|
|
.ToLocalChecked()
|
|
->ToObject(env.local())
|
|
.ToLocalChecked();
|
|
v8::Local<v8::String> string = strings_array->Get(env.local(), string_index)
|
|
.ToLocalChecked()
|
|
->ToString(env.local())
|
|
.ToLocalChecked();
|
|
v8::Local<v8::String> ref_string = CompileRun(STRING_LITERAL_FOR_TEST)
|
|
->ToString(env.local())
|
|
.ToLocalChecked();
|
|
#undef STRING_LITERAL_FOR_TEST
|
|
CHECK_EQ(0, strcmp(*v8::String::Utf8Value(ref_string),
|
|
*v8::String::Utf8Value(string)));
|
|
}
|
|
|
|
|
|
TEST(HeapSnapshotJSONSerializationAborting) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
TestJSONStream stream(5);
|
|
snapshot->Serialize(&stream, v8::HeapSnapshot::kJSON);
|
|
CHECK_GT(stream.size(), 0);
|
|
CHECK_EQ(0, stream.eos_signaled());
|
|
}
|
|
|
|
namespace {
|
|
|
|
class TestStatsStream : public v8::OutputStream {
|
|
public:
|
|
TestStatsStream()
|
|
: eos_signaled_(0),
|
|
updates_written_(0),
|
|
entries_count_(0),
|
|
entries_size_(0),
|
|
intervals_count_(0),
|
|
first_interval_index_(-1) { }
|
|
TestStatsStream(const TestStatsStream& stream)
|
|
: v8::OutputStream(stream),
|
|
eos_signaled_(stream.eos_signaled_),
|
|
updates_written_(stream.updates_written_),
|
|
entries_count_(stream.entries_count_),
|
|
entries_size_(stream.entries_size_),
|
|
intervals_count_(stream.intervals_count_),
|
|
first_interval_index_(stream.first_interval_index_) { }
|
|
virtual ~TestStatsStream() {}
|
|
virtual void EndOfStream() { ++eos_signaled_; }
|
|
virtual WriteResult WriteAsciiChunk(char* buffer, int chars_written) {
|
|
CHECK(false);
|
|
return kAbort;
|
|
}
|
|
virtual WriteResult WriteHeapStatsChunk(v8::HeapStatsUpdate* buffer,
|
|
int updates_written) {
|
|
++intervals_count_;
|
|
CHECK(updates_written);
|
|
updates_written_ += updates_written;
|
|
entries_count_ = 0;
|
|
if (first_interval_index_ == -1 && updates_written != 0)
|
|
first_interval_index_ = buffer[0].index;
|
|
for (int i = 0; i < updates_written; ++i) {
|
|
entries_count_ += buffer[i].count;
|
|
entries_size_ += buffer[i].size;
|
|
}
|
|
|
|
return kContinue;
|
|
}
|
|
int eos_signaled() { return eos_signaled_; }
|
|
int updates_written() { return updates_written_; }
|
|
uint32_t entries_count() const { return entries_count_; }
|
|
uint32_t entries_size() const { return entries_size_; }
|
|
int intervals_count() const { return intervals_count_; }
|
|
int first_interval_index() const { return first_interval_index_; }
|
|
|
|
private:
|
|
int eos_signaled_;
|
|
int updates_written_;
|
|
uint32_t entries_count_;
|
|
uint32_t entries_size_;
|
|
int intervals_count_;
|
|
int first_interval_index_;
|
|
};
|
|
|
|
} // namespace
|
|
|
|
static TestStatsStream GetHeapStatsUpdate(
|
|
v8::HeapProfiler* heap_profiler,
|
|
v8::SnapshotObjectId* object_id = NULL) {
|
|
TestStatsStream stream;
|
|
int64_t timestamp = -1;
|
|
v8::SnapshotObjectId last_seen_id =
|
|
heap_profiler->GetHeapStats(&stream, ×tamp);
|
|
if (object_id)
|
|
*object_id = last_seen_id;
|
|
CHECK_NE(-1, timestamp);
|
|
CHECK_EQ(1, stream.eos_signaled());
|
|
return stream;
|
|
}
|
|
|
|
|
|
TEST(HeapSnapshotObjectsStats) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
heap_profiler->StartTrackingHeapObjects();
|
|
// We have to call GC 6 times. In other case the garbage will be
|
|
// the reason of flakiness.
|
|
for (int i = 0; i < 6; ++i) {
|
|
CcTest::CollectAllGarbage(i::Heap::kFinalizeIncrementalMarkingMask);
|
|
}
|
|
|
|
v8::SnapshotObjectId initial_id;
|
|
{
|
|
// Single chunk of data expected in update. Initial data.
|
|
TestStatsStream stats_update = GetHeapStatsUpdate(heap_profiler,
|
|
&initial_id);
|
|
CHECK_EQ(1, stats_update.intervals_count());
|
|
CHECK_EQ(1, stats_update.updates_written());
|
|
CHECK_LT(0u, stats_update.entries_size());
|
|
CHECK_EQ(0, stats_update.first_interval_index());
|
|
}
|
|
|
|
// No data expected in update because nothing has happened.
|
|
v8::SnapshotObjectId same_id;
|
|
CHECK_EQ(0, GetHeapStatsUpdate(heap_profiler, &same_id).updates_written());
|
|
CHECK_EQ(initial_id, same_id);
|
|
|
|
{
|
|
v8::SnapshotObjectId additional_string_id;
|
|
v8::HandleScope inner_scope_1(env->GetIsolate());
|
|
v8_str("string1");
|
|
{
|
|
// Single chunk of data with one new entry expected in update.
|
|
TestStatsStream stats_update = GetHeapStatsUpdate(heap_profiler,
|
|
&additional_string_id);
|
|
CHECK_LT(same_id, additional_string_id);
|
|
CHECK_EQ(1, stats_update.intervals_count());
|
|
CHECK_EQ(1, stats_update.updates_written());
|
|
CHECK_LT(0u, stats_update.entries_size());
|
|
CHECK_EQ(1u, stats_update.entries_count());
|
|
CHECK_EQ(2, stats_update.first_interval_index());
|
|
}
|
|
|
|
// No data expected in update because nothing happened.
|
|
v8::SnapshotObjectId last_id;
|
|
CHECK_EQ(0, GetHeapStatsUpdate(heap_profiler, &last_id).updates_written());
|
|
CHECK_EQ(additional_string_id, last_id);
|
|
|
|
{
|
|
v8::HandleScope inner_scope_2(env->GetIsolate());
|
|
v8_str("string2");
|
|
|
|
uint32_t entries_size;
|
|
{
|
|
v8::HandleScope inner_scope_3(env->GetIsolate());
|
|
v8_str("string3");
|
|
v8_str("string4");
|
|
|
|
{
|
|
// Single chunk of data with three new entries expected in update.
|
|
TestStatsStream stats_update = GetHeapStatsUpdate(heap_profiler);
|
|
CHECK_EQ(1, stats_update.intervals_count());
|
|
CHECK_EQ(1, stats_update.updates_written());
|
|
CHECK_LT(0u, entries_size = stats_update.entries_size());
|
|
CHECK_EQ(3u, stats_update.entries_count());
|
|
CHECK_EQ(4, stats_update.first_interval_index());
|
|
}
|
|
}
|
|
|
|
{
|
|
// Single chunk of data with two left entries expected in update.
|
|
TestStatsStream stats_update = GetHeapStatsUpdate(heap_profiler);
|
|
CHECK_EQ(1, stats_update.intervals_count());
|
|
CHECK_EQ(1, stats_update.updates_written());
|
|
CHECK_GT(entries_size, stats_update.entries_size());
|
|
CHECK_EQ(1u, stats_update.entries_count());
|
|
// Two strings from forth interval were released.
|
|
CHECK_EQ(4, stats_update.first_interval_index());
|
|
}
|
|
}
|
|
|
|
{
|
|
// Single chunk of data with 0 left entries expected in update.
|
|
TestStatsStream stats_update = GetHeapStatsUpdate(heap_profiler);
|
|
CHECK_EQ(1, stats_update.intervals_count());
|
|
CHECK_EQ(1, stats_update.updates_written());
|
|
CHECK_EQ(0u, stats_update.entries_size());
|
|
CHECK_EQ(0u, stats_update.entries_count());
|
|
// The last string from forth interval was released.
|
|
CHECK_EQ(4, stats_update.first_interval_index());
|
|
}
|
|
}
|
|
{
|
|
// Single chunk of data with 0 left entries expected in update.
|
|
TestStatsStream stats_update = GetHeapStatsUpdate(heap_profiler);
|
|
CHECK_EQ(1, stats_update.intervals_count());
|
|
CHECK_EQ(1, stats_update.updates_written());
|
|
CHECK_EQ(0u, stats_update.entries_size());
|
|
CHECK_EQ(0u, stats_update.entries_count());
|
|
// The only string from the second interval was released.
|
|
CHECK_EQ(2, stats_update.first_interval_index());
|
|
}
|
|
|
|
v8::Local<v8::Array> array = v8::Array::New(env->GetIsolate());
|
|
CHECK_EQ(0u, array->Length());
|
|
// Force array's buffer allocation.
|
|
array->Set(env.local(), 2, v8_num(7)).FromJust();
|
|
|
|
uint32_t entries_size;
|
|
{
|
|
// Single chunk of data with 2 entries expected in update.
|
|
TestStatsStream stats_update = GetHeapStatsUpdate(heap_profiler);
|
|
CHECK_EQ(1, stats_update.intervals_count());
|
|
CHECK_EQ(1, stats_update.updates_written());
|
|
CHECK_LT(0u, entries_size = stats_update.entries_size());
|
|
// They are the array and its buffer.
|
|
CHECK_EQ(2u, stats_update.entries_count());
|
|
CHECK_EQ(8, stats_update.first_interval_index());
|
|
}
|
|
|
|
for (int i = 0; i < 100; ++i)
|
|
array->Set(env.local(), i, v8_num(i)).FromJust();
|
|
|
|
{
|
|
// Single chunk of data with 1 entry expected in update.
|
|
TestStatsStream stats_update = GetHeapStatsUpdate(heap_profiler);
|
|
CHECK_EQ(1, stats_update.intervals_count());
|
|
// The first interval was changed because old buffer was collected.
|
|
// The second interval was changed because new buffer was allocated.
|
|
CHECK_EQ(2, stats_update.updates_written());
|
|
CHECK_LT(entries_size, stats_update.entries_size());
|
|
CHECK_EQ(2u, stats_update.entries_count());
|
|
CHECK_EQ(8, stats_update.first_interval_index());
|
|
}
|
|
|
|
heap_profiler->StopTrackingHeapObjects();
|
|
}
|
|
|
|
|
|
TEST(HeapObjectIds) {
|
|
LocalContext env;
|
|
v8::Isolate* isolate = env->GetIsolate();
|
|
v8::HandleScope scope(isolate);
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
const int kLength = 10;
|
|
v8::Local<v8::Object> objects[kLength];
|
|
v8::SnapshotObjectId ids[kLength];
|
|
|
|
heap_profiler->StartTrackingHeapObjects(false);
|
|
|
|
for (int i = 0; i < kLength; i++) {
|
|
objects[i] = v8::Object::New(isolate);
|
|
}
|
|
GetHeapStatsUpdate(heap_profiler);
|
|
|
|
for (int i = 0; i < kLength; i++) {
|
|
v8::SnapshotObjectId id = heap_profiler->GetObjectId(objects[i]);
|
|
CHECK_NE(v8::HeapProfiler::kUnknownObjectId, id);
|
|
ids[i] = id;
|
|
}
|
|
|
|
heap_profiler->StopTrackingHeapObjects();
|
|
CcTest::CollectAllAvailableGarbage();
|
|
|
|
for (int i = 0; i < kLength; i++) {
|
|
v8::SnapshotObjectId id = heap_profiler->GetObjectId(objects[i]);
|
|
CHECK_EQ(ids[i], id);
|
|
v8::Local<v8::Value> obj = heap_profiler->FindObjectById(ids[i]);
|
|
CHECK(objects[i]->Equals(env.local(), obj).FromJust());
|
|
}
|
|
|
|
heap_profiler->ClearObjectIds();
|
|
for (int i = 0; i < kLength; i++) {
|
|
v8::SnapshotObjectId id = heap_profiler->GetObjectId(objects[i]);
|
|
CHECK_EQ(v8::HeapProfiler::kUnknownObjectId, id);
|
|
v8::Local<v8::Value> obj = heap_profiler->FindObjectById(ids[i]);
|
|
CHECK(obj.IsEmpty());
|
|
}
|
|
}
|
|
|
|
|
|
static void CheckChildrenIds(const v8::HeapSnapshot* snapshot,
|
|
const v8::HeapGraphNode* node,
|
|
int level, int max_level) {
|
|
if (level > max_level) return;
|
|
CHECK_EQ(node, snapshot->GetNodeById(node->GetId()));
|
|
for (int i = 0, count = node->GetChildrenCount(); i < count; ++i) {
|
|
const v8::HeapGraphEdge* prop = node->GetChild(i);
|
|
const v8::HeapGraphNode* child =
|
|
snapshot->GetNodeById(prop->GetToNode()->GetId());
|
|
CHECK_EQ(prop->GetToNode()->GetId(), child->GetId());
|
|
CHECK_EQ(prop->GetToNode(), child);
|
|
CheckChildrenIds(snapshot, child, level + 1, max_level);
|
|
}
|
|
}
|
|
|
|
|
|
TEST(HeapSnapshotGetNodeById) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* root = snapshot->GetRoot();
|
|
CheckChildrenIds(snapshot, root, 0, 3);
|
|
// Check a big id, which should not exist yet.
|
|
CHECK(!snapshot->GetNodeById(0x1000000UL));
|
|
}
|
|
|
|
|
|
TEST(HeapSnapshotGetSnapshotObjectId) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
CompileRun("globalObject = {};\n");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* global_object =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "globalObject");
|
|
CHECK(global_object);
|
|
|
|
v8::Local<v8::Value> globalObjectHandle =
|
|
env->Global()->Get(env.local(), v8_str("globalObject")).ToLocalChecked();
|
|
CHECK(!globalObjectHandle.IsEmpty());
|
|
CHECK(globalObjectHandle->IsObject());
|
|
|
|
v8::SnapshotObjectId id = heap_profiler->GetObjectId(globalObjectHandle);
|
|
CHECK_NE(v8::HeapProfiler::kUnknownObjectId, id);
|
|
CHECK_EQ(id, global_object->GetId());
|
|
}
|
|
|
|
|
|
TEST(HeapSnapshotUnknownSnapshotObjectId) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
CompileRun("globalObject = {};\n");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* node =
|
|
snapshot->GetNodeById(v8::HeapProfiler::kUnknownObjectId);
|
|
CHECK(!node);
|
|
}
|
|
|
|
|
|
namespace {
|
|
|
|
class TestActivityControl : public v8::ActivityControl {
|
|
public:
|
|
explicit TestActivityControl(int abort_count)
|
|
: done_(0), total_(0), abort_count_(abort_count) {}
|
|
ControlOption ReportProgressValue(int done, int total) {
|
|
done_ = done;
|
|
total_ = total;
|
|
return --abort_count_ != 0 ? kContinue : kAbort;
|
|
}
|
|
int done() { return done_; }
|
|
int total() { return total_; }
|
|
|
|
private:
|
|
int done_;
|
|
int total_;
|
|
int abort_count_;
|
|
};
|
|
|
|
} // namespace
|
|
|
|
|
|
TEST(TakeHeapSnapshotAborting) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
const int snapshots_count = heap_profiler->GetSnapshotCount();
|
|
TestActivityControl aborting_control(1);
|
|
const v8::HeapSnapshot* no_snapshot =
|
|
heap_profiler->TakeHeapSnapshot(&aborting_control);
|
|
CHECK(!no_snapshot);
|
|
CHECK_EQ(snapshots_count, heap_profiler->GetSnapshotCount());
|
|
CHECK_GT(aborting_control.total(), aborting_control.done());
|
|
|
|
TestActivityControl control(-1); // Don't abort.
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot(&control);
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
|
|
CHECK(snapshot);
|
|
CHECK_EQ(snapshots_count + 1, heap_profiler->GetSnapshotCount());
|
|
CHECK_EQ(control.total(), control.done());
|
|
CHECK_GT(control.total(), 0);
|
|
}
|
|
|
|
|
|
namespace {
|
|
|
|
class TestRetainedObjectInfo : public v8::RetainedObjectInfo {
|
|
public:
|
|
TestRetainedObjectInfo(int hash,
|
|
const char* group_label,
|
|
const char* label,
|
|
intptr_t element_count = -1,
|
|
intptr_t size = -1)
|
|
: disposed_(false),
|
|
hash_(hash),
|
|
group_label_(group_label),
|
|
label_(label),
|
|
element_count_(element_count),
|
|
size_(size) {
|
|
instances.Add(this);
|
|
}
|
|
virtual ~TestRetainedObjectInfo() {}
|
|
virtual void Dispose() {
|
|
CHECK(!disposed_);
|
|
disposed_ = true;
|
|
}
|
|
virtual bool IsEquivalent(RetainedObjectInfo* other) {
|
|
return GetHash() == other->GetHash();
|
|
}
|
|
virtual intptr_t GetHash() { return hash_; }
|
|
virtual const char* GetGroupLabel() { return group_label_; }
|
|
virtual const char* GetLabel() { return label_; }
|
|
virtual intptr_t GetElementCount() { return element_count_; }
|
|
virtual intptr_t GetSizeInBytes() { return size_; }
|
|
bool disposed() { return disposed_; }
|
|
|
|
static v8::RetainedObjectInfo* WrapperInfoCallback(
|
|
uint16_t class_id, v8::Local<v8::Value> wrapper) {
|
|
if (class_id == 1) {
|
|
if (wrapper->IsString()) {
|
|
v8::String::Utf8Value utf8(wrapper);
|
|
if (strcmp(*utf8, "AAA") == 0)
|
|
return new TestRetainedObjectInfo(1, "aaa-group", "aaa", 100);
|
|
else if (strcmp(*utf8, "BBB") == 0)
|
|
return new TestRetainedObjectInfo(1, "aaa-group", "aaa", 100);
|
|
}
|
|
} else if (class_id == 2) {
|
|
if (wrapper->IsString()) {
|
|
v8::String::Utf8Value utf8(wrapper);
|
|
if (strcmp(*utf8, "CCC") == 0)
|
|
return new TestRetainedObjectInfo(2, "ccc-group", "ccc");
|
|
}
|
|
}
|
|
CHECK(false);
|
|
return NULL;
|
|
}
|
|
|
|
static i::List<TestRetainedObjectInfo*> instances;
|
|
|
|
private:
|
|
bool disposed_;
|
|
int hash_;
|
|
const char* group_label_;
|
|
const char* label_;
|
|
intptr_t element_count_;
|
|
intptr_t size_;
|
|
};
|
|
|
|
|
|
i::List<TestRetainedObjectInfo*> TestRetainedObjectInfo::instances;
|
|
|
|
} // namespace
|
|
|
|
|
|
static const v8::HeapGraphNode* GetNode(const v8::HeapGraphNode* parent,
|
|
v8::HeapGraphNode::Type type,
|
|
const char* name) {
|
|
for (int i = 0, count = parent->GetChildrenCount(); i < count; ++i) {
|
|
const v8::HeapGraphNode* node = parent->GetChild(i)->GetToNode();
|
|
if (node->GetType() == type && strcmp(name,
|
|
const_cast<i::HeapEntry*>(
|
|
reinterpret_cast<const i::HeapEntry*>(node))->name()) == 0) {
|
|
return node;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
|
|
TEST(HeapSnapshotRetainedObjectInfo) {
|
|
LocalContext env;
|
|
v8::Isolate* isolate = env->GetIsolate();
|
|
v8::HandleScope scope(isolate);
|
|
v8::HeapProfiler* heap_profiler = isolate->GetHeapProfiler();
|
|
|
|
heap_profiler->SetWrapperClassInfoProvider(
|
|
1, TestRetainedObjectInfo::WrapperInfoCallback);
|
|
heap_profiler->SetWrapperClassInfoProvider(
|
|
2, TestRetainedObjectInfo::WrapperInfoCallback);
|
|
v8::Persistent<v8::String> p_AAA(isolate, v8_str("AAA"));
|
|
p_AAA.SetWrapperClassId(1);
|
|
v8::Persistent<v8::String> p_BBB(isolate, v8_str("BBB"));
|
|
p_BBB.SetWrapperClassId(1);
|
|
v8::Persistent<v8::String> p_CCC(isolate, v8_str("CCC"));
|
|
p_CCC.SetWrapperClassId(2);
|
|
CHECK_EQ(0, TestRetainedObjectInfo::instances.length());
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
|
|
CHECK_EQ(3, TestRetainedObjectInfo::instances.length());
|
|
for (int i = 0; i < TestRetainedObjectInfo::instances.length(); ++i) {
|
|
CHECK(TestRetainedObjectInfo::instances[i]->disposed());
|
|
delete TestRetainedObjectInfo::instances[i];
|
|
}
|
|
|
|
const v8::HeapGraphNode* native_group_aaa = GetNode(
|
|
snapshot->GetRoot(), v8::HeapGraphNode::kSynthetic, "aaa-group");
|
|
CHECK(native_group_aaa);
|
|
CHECK_EQ(1, native_group_aaa->GetChildrenCount());
|
|
const v8::HeapGraphNode* aaa = GetNode(
|
|
native_group_aaa, v8::HeapGraphNode::kNative, "aaa / 100 entries");
|
|
CHECK(aaa);
|
|
CHECK_EQ(2, aaa->GetChildrenCount());
|
|
|
|
const v8::HeapGraphNode* native_group_ccc = GetNode(
|
|
snapshot->GetRoot(), v8::HeapGraphNode::kSynthetic, "ccc-group");
|
|
const v8::HeapGraphNode* ccc = GetNode(
|
|
native_group_ccc, v8::HeapGraphNode::kNative, "ccc");
|
|
CHECK(ccc);
|
|
|
|
const v8::HeapGraphNode* n_AAA = GetNode(
|
|
aaa, v8::HeapGraphNode::kString, "AAA");
|
|
CHECK(n_AAA);
|
|
const v8::HeapGraphNode* n_BBB = GetNode(
|
|
aaa, v8::HeapGraphNode::kString, "BBB");
|
|
CHECK(n_BBB);
|
|
CHECK_EQ(1, ccc->GetChildrenCount());
|
|
const v8::HeapGraphNode* n_CCC = GetNode(
|
|
ccc, v8::HeapGraphNode::kString, "CCC");
|
|
CHECK(n_CCC);
|
|
|
|
CHECK_EQ(aaa, GetProperty(n_AAA, v8::HeapGraphEdge::kInternal, "native"));
|
|
CHECK_EQ(aaa, GetProperty(n_BBB, v8::HeapGraphEdge::kInternal, "native"));
|
|
CHECK_EQ(ccc, GetProperty(n_CCC, v8::HeapGraphEdge::kInternal, "native"));
|
|
}
|
|
|
|
|
|
class GraphWithImplicitRefs {
|
|
public:
|
|
static const int kObjectsCount = 4;
|
|
explicit GraphWithImplicitRefs(LocalContext* env) {
|
|
CHECK(!instance_);
|
|
instance_ = this;
|
|
isolate_ = (*env)->GetIsolate();
|
|
for (int i = 0; i < kObjectsCount; i++) {
|
|
objects_[i].Reset(isolate_, v8::Object::New(isolate_));
|
|
}
|
|
(*env)
|
|
->Global()
|
|
->Set(isolate_->GetCurrentContext(), v8_str("root_object"),
|
|
v8::Local<v8::Value>::New(isolate_, objects_[0]))
|
|
.FromJust();
|
|
}
|
|
~GraphWithImplicitRefs() {
|
|
instance_ = NULL;
|
|
}
|
|
|
|
static void gcPrologue(v8::Isolate* isolate, v8::GCType type,
|
|
v8::GCCallbackFlags flags) {
|
|
instance_->AddImplicitReferences();
|
|
}
|
|
|
|
private:
|
|
void AddImplicitReferences() {
|
|
// 0 -> 1
|
|
isolate_->SetObjectGroupId(objects_[0],
|
|
v8::UniqueId(1));
|
|
isolate_->SetReferenceFromGroup(
|
|
v8::UniqueId(1), objects_[1]);
|
|
// Adding two more references: 1 -> 2, 1 -> 3
|
|
isolate_->SetReference(objects_[1].As<v8::Object>(),
|
|
objects_[2]);
|
|
isolate_->SetReference(objects_[1].As<v8::Object>(),
|
|
objects_[3]);
|
|
}
|
|
|
|
v8::Persistent<v8::Value> objects_[kObjectsCount];
|
|
static GraphWithImplicitRefs* instance_;
|
|
v8::Isolate* isolate_;
|
|
};
|
|
|
|
GraphWithImplicitRefs* GraphWithImplicitRefs::instance_ = NULL;
|
|
|
|
|
|
TEST(HeapSnapshotImplicitReferences) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
GraphWithImplicitRefs graph(&env);
|
|
env->GetIsolate()->AddGCPrologueCallback(&GraphWithImplicitRefs::gcPrologue);
|
|
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
|
|
const v8::HeapGraphNode* global_object = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* obj0 = GetProperty(
|
|
global_object, v8::HeapGraphEdge::kProperty, "root_object");
|
|
CHECK(obj0);
|
|
CHECK_EQ(v8::HeapGraphNode::kObject, obj0->GetType());
|
|
const v8::HeapGraphNode* obj1 = GetProperty(
|
|
obj0, v8::HeapGraphEdge::kInternal, "native");
|
|
CHECK(obj1);
|
|
int implicit_targets_count = 0;
|
|
for (int i = 0, count = obj1->GetChildrenCount(); i < count; ++i) {
|
|
const v8::HeapGraphEdge* prop = obj1->GetChild(i);
|
|
v8::String::Utf8Value prop_name(prop->GetName());
|
|
if (prop->GetType() == v8::HeapGraphEdge::kInternal &&
|
|
strcmp("native", *prop_name) == 0) {
|
|
++implicit_targets_count;
|
|
}
|
|
}
|
|
CHECK_EQ(2, implicit_targets_count);
|
|
env->GetIsolate()->RemoveGCPrologueCallback(
|
|
&GraphWithImplicitRefs::gcPrologue);
|
|
}
|
|
|
|
|
|
TEST(DeleteAllHeapSnapshots) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CHECK_EQ(0, heap_profiler->GetSnapshotCount());
|
|
heap_profiler->DeleteAllHeapSnapshots();
|
|
CHECK_EQ(0, heap_profiler->GetSnapshotCount());
|
|
CHECK(heap_profiler->TakeHeapSnapshot());
|
|
CHECK_EQ(1, heap_profiler->GetSnapshotCount());
|
|
heap_profiler->DeleteAllHeapSnapshots();
|
|
CHECK_EQ(0, heap_profiler->GetSnapshotCount());
|
|
CHECK(heap_profiler->TakeHeapSnapshot());
|
|
CHECK(heap_profiler->TakeHeapSnapshot());
|
|
CHECK_EQ(2, heap_profiler->GetSnapshotCount());
|
|
heap_profiler->DeleteAllHeapSnapshots();
|
|
CHECK_EQ(0, heap_profiler->GetSnapshotCount());
|
|
}
|
|
|
|
|
|
static bool FindHeapSnapshot(v8::HeapProfiler* profiler,
|
|
const v8::HeapSnapshot* snapshot) {
|
|
int length = profiler->GetSnapshotCount();
|
|
for (int i = 0; i < length; i++) {
|
|
if (snapshot == profiler->GetHeapSnapshot(i)) return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
TEST(DeleteHeapSnapshot) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CHECK_EQ(0, heap_profiler->GetSnapshotCount());
|
|
const v8::HeapSnapshot* s1 = heap_profiler->TakeHeapSnapshot();
|
|
|
|
CHECK(s1);
|
|
CHECK_EQ(1, heap_profiler->GetSnapshotCount());
|
|
CHECK(FindHeapSnapshot(heap_profiler, s1));
|
|
const_cast<v8::HeapSnapshot*>(s1)->Delete();
|
|
CHECK_EQ(0, heap_profiler->GetSnapshotCount());
|
|
CHECK(!FindHeapSnapshot(heap_profiler, s1));
|
|
|
|
const v8::HeapSnapshot* s2 = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(s2);
|
|
CHECK_EQ(1, heap_profiler->GetSnapshotCount());
|
|
CHECK(FindHeapSnapshot(heap_profiler, s2));
|
|
const v8::HeapSnapshot* s3 = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(s3);
|
|
CHECK_EQ(2, heap_profiler->GetSnapshotCount());
|
|
CHECK_NE(s2, s3);
|
|
CHECK(FindHeapSnapshot(heap_profiler, s3));
|
|
const_cast<v8::HeapSnapshot*>(s2)->Delete();
|
|
CHECK_EQ(1, heap_profiler->GetSnapshotCount());
|
|
CHECK(!FindHeapSnapshot(heap_profiler, s2));
|
|
CHECK(FindHeapSnapshot(heap_profiler, s3));
|
|
const_cast<v8::HeapSnapshot*>(s3)->Delete();
|
|
CHECK_EQ(0, heap_profiler->GetSnapshotCount());
|
|
CHECK(!FindHeapSnapshot(heap_profiler, s3));
|
|
}
|
|
|
|
|
|
class NameResolver : public v8::HeapProfiler::ObjectNameResolver {
|
|
public:
|
|
virtual const char* GetName(v8::Local<v8::Object> object) {
|
|
return "Global object name";
|
|
}
|
|
};
|
|
|
|
|
|
TEST(GlobalObjectName) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun("document = { URL:\"abcdefgh\" };");
|
|
|
|
NameResolver name_resolver;
|
|
const v8::HeapSnapshot* snapshot =
|
|
heap_profiler->TakeHeapSnapshot(NULL, &name_resolver);
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
CHECK(global);
|
|
CHECK_EQ(0,
|
|
strcmp("Object / Global object name",
|
|
const_cast<i::HeapEntry*>(
|
|
reinterpret_cast<const i::HeapEntry*>(global))->name()));
|
|
}
|
|
|
|
|
|
TEST(GlobalObjectFields) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
CompileRun("obj = {};");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* native_context =
|
|
GetProperty(global, v8::HeapGraphEdge::kInternal, "native_context");
|
|
CHECK(native_context);
|
|
const v8::HeapGraphNode* global_proxy =
|
|
GetProperty(global, v8::HeapGraphEdge::kInternal, "global_proxy");
|
|
CHECK(global_proxy);
|
|
}
|
|
|
|
|
|
TEST(NoHandleLeaks) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun("document = { URL:\"abcdefgh\" };");
|
|
|
|
i::Isolate* isolate = CcTest::i_isolate();
|
|
int count_before = i::HandleScope::NumberOfHandles(isolate);
|
|
heap_profiler->TakeHeapSnapshot();
|
|
int count_after = i::HandleScope::NumberOfHandles(isolate);
|
|
CHECK_EQ(count_before, count_after);
|
|
}
|
|
|
|
|
|
TEST(NodesIteration) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
CHECK(global);
|
|
// Verify that we can find this object by iteration.
|
|
const int nodes_count = snapshot->GetNodesCount();
|
|
int count = 0;
|
|
for (int i = 0; i < nodes_count; ++i) {
|
|
if (snapshot->GetNode(i) == global)
|
|
++count;
|
|
}
|
|
CHECK_EQ(1, count);
|
|
}
|
|
|
|
|
|
TEST(GetHeapValueForNode) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun("a = { s_prop: \'value\', n_prop: \'value2\' };");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
CHECK(heap_profiler->FindObjectById(global->GetId())->IsObject());
|
|
v8::Local<v8::Object> js_global =
|
|
env->Global()->GetPrototype().As<v8::Object>();
|
|
CHECK(js_global == heap_profiler->FindObjectById(global->GetId()));
|
|
const v8::HeapGraphNode* obj = GetProperty(
|
|
global, v8::HeapGraphEdge::kProperty, "a");
|
|
CHECK(heap_profiler->FindObjectById(obj->GetId())->IsObject());
|
|
v8::Local<v8::Object> js_obj = js_global->Get(env.local(), v8_str("a"))
|
|
.ToLocalChecked()
|
|
.As<v8::Object>();
|
|
CHECK(js_obj == heap_profiler->FindObjectById(obj->GetId()));
|
|
const v8::HeapGraphNode* s_prop =
|
|
GetProperty(obj, v8::HeapGraphEdge::kProperty, "s_prop");
|
|
v8::Local<v8::String> js_s_prop = js_obj->Get(env.local(), v8_str("s_prop"))
|
|
.ToLocalChecked()
|
|
.As<v8::String>();
|
|
CHECK(js_s_prop == heap_profiler->FindObjectById(s_prop->GetId()));
|
|
const v8::HeapGraphNode* n_prop =
|
|
GetProperty(obj, v8::HeapGraphEdge::kProperty, "n_prop");
|
|
v8::Local<v8::String> js_n_prop = js_obj->Get(env.local(), v8_str("n_prop"))
|
|
.ToLocalChecked()
|
|
.As<v8::String>();
|
|
CHECK(js_n_prop == heap_profiler->FindObjectById(n_prop->GetId()));
|
|
}
|
|
|
|
|
|
TEST(GetHeapValueForDeletedObject) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
// It is impossible to delete a global property, so we are about to delete a
|
|
// property of the "a" object. Also, the "p" object can't be an empty one
|
|
// because the empty object is static and isn't actually deleted.
|
|
CompileRun("a = { p: { r: {} } };");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* obj = GetProperty(
|
|
global, v8::HeapGraphEdge::kProperty, "a");
|
|
const v8::HeapGraphNode* prop = GetProperty(
|
|
obj, v8::HeapGraphEdge::kProperty, "p");
|
|
{
|
|
// Perform the check inside a nested local scope to avoid creating a
|
|
// reference to the object we are deleting.
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
CHECK(heap_profiler->FindObjectById(prop->GetId())->IsObject());
|
|
}
|
|
CompileRun("delete a.p;");
|
|
CHECK(heap_profiler->FindObjectById(prop->GetId()).IsEmpty());
|
|
}
|
|
|
|
|
|
static int StringCmp(const char* ref, i::String* act) {
|
|
std::unique_ptr<char[]> s_act = act->ToCString();
|
|
int result = strcmp(ref, s_act.get());
|
|
if (result != 0)
|
|
fprintf(stderr, "Expected: \"%s\", Actual: \"%s\"\n", ref, s_act.get());
|
|
return result;
|
|
}
|
|
|
|
|
|
TEST(GetConstructorName) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
|
|
CompileRun(
|
|
"function Constructor1() {};\n"
|
|
"var obj1 = new Constructor1();\n"
|
|
"var Constructor2 = function() {};\n"
|
|
"var obj2 = new Constructor2();\n"
|
|
"var obj3 = {};\n"
|
|
"obj3.__proto__ = { constructor: function Constructor3() {} };\n"
|
|
"var obj4 = {};\n"
|
|
"// Slow properties\n"
|
|
"for (var i=0; i<2000; ++i) obj4[\"p\" + i] = i;\n"
|
|
"obj4.__proto__ = { constructor: function Constructor4() {} };\n"
|
|
"var obj5 = {};\n"
|
|
"var obj6 = {};\n"
|
|
"obj6.constructor = 6;");
|
|
v8::Local<v8::Object> js_global =
|
|
env->Global()->GetPrototype().As<v8::Object>();
|
|
v8::Local<v8::Object> obj1 = js_global->Get(env.local(), v8_str("obj1"))
|
|
.ToLocalChecked()
|
|
.As<v8::Object>();
|
|
i::Handle<i::JSObject> js_obj1 =
|
|
i::Handle<i::JSObject>::cast(v8::Utils::OpenHandle(*obj1));
|
|
CHECK_EQ(0, StringCmp(
|
|
"Constructor1", i::V8HeapExplorer::GetConstructorName(*js_obj1)));
|
|
v8::Local<v8::Object> obj2 = js_global->Get(env.local(), v8_str("obj2"))
|
|
.ToLocalChecked()
|
|
.As<v8::Object>();
|
|
i::Handle<i::JSObject> js_obj2 =
|
|
i::Handle<i::JSObject>::cast(v8::Utils::OpenHandle(*obj2));
|
|
CHECK_EQ(0, StringCmp(
|
|
"Constructor2", i::V8HeapExplorer::GetConstructorName(*js_obj2)));
|
|
v8::Local<v8::Object> obj3 = js_global->Get(env.local(), v8_str("obj3"))
|
|
.ToLocalChecked()
|
|
.As<v8::Object>();
|
|
i::Handle<i::JSObject> js_obj3 =
|
|
i::Handle<i::JSObject>::cast(v8::Utils::OpenHandle(*obj3));
|
|
CHECK_EQ(0, StringCmp("Constructor3",
|
|
i::V8HeapExplorer::GetConstructorName(*js_obj3)));
|
|
v8::Local<v8::Object> obj4 = js_global->Get(env.local(), v8_str("obj4"))
|
|
.ToLocalChecked()
|
|
.As<v8::Object>();
|
|
i::Handle<i::JSObject> js_obj4 =
|
|
i::Handle<i::JSObject>::cast(v8::Utils::OpenHandle(*obj4));
|
|
CHECK_EQ(0, StringCmp("Constructor4",
|
|
i::V8HeapExplorer::GetConstructorName(*js_obj4)));
|
|
v8::Local<v8::Object> obj5 = js_global->Get(env.local(), v8_str("obj5"))
|
|
.ToLocalChecked()
|
|
.As<v8::Object>();
|
|
i::Handle<i::JSObject> js_obj5 =
|
|
i::Handle<i::JSObject>::cast(v8::Utils::OpenHandle(*obj5));
|
|
CHECK_EQ(0, StringCmp(
|
|
"Object", i::V8HeapExplorer::GetConstructorName(*js_obj5)));
|
|
v8::Local<v8::Object> obj6 = js_global->Get(env.local(), v8_str("obj6"))
|
|
.ToLocalChecked()
|
|
.As<v8::Object>();
|
|
i::Handle<i::JSObject> js_obj6 =
|
|
i::Handle<i::JSObject>::cast(v8::Utils::OpenHandle(*obj6));
|
|
CHECK_EQ(0, StringCmp(
|
|
"Object", i::V8HeapExplorer::GetConstructorName(*js_obj6)));
|
|
}
|
|
|
|
|
|
TEST(FastCaseAccessors) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun("var obj1 = {};\n"
|
|
"obj1.__defineGetter__('propWithGetter', function Y() {\n"
|
|
" return 42;\n"
|
|
"});\n"
|
|
"obj1.__defineSetter__('propWithSetter', function Z(value) {\n"
|
|
" return this.value_ = value;\n"
|
|
"});\n");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
CHECK(global);
|
|
const v8::HeapGraphNode* obj1 =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "obj1");
|
|
CHECK(obj1);
|
|
const v8::HeapGraphNode* func;
|
|
func = GetProperty(obj1, v8::HeapGraphEdge::kProperty, "get propWithGetter");
|
|
CHECK(func);
|
|
func = GetProperty(obj1, v8::HeapGraphEdge::kProperty, "set propWithGetter");
|
|
CHECK(!func);
|
|
func = GetProperty(obj1, v8::HeapGraphEdge::kProperty, "set propWithSetter");
|
|
CHECK(func);
|
|
func = GetProperty(obj1, v8::HeapGraphEdge::kProperty, "get propWithSetter");
|
|
CHECK(!func);
|
|
}
|
|
|
|
|
|
TEST(FastCaseRedefinedAccessors) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun(
|
|
"var obj1 = {};\n"
|
|
"Object.defineProperty(obj1, 'prop', { "
|
|
" get: function() { return 42; },\n"
|
|
" set: function(value) { return this.prop_ = value; },\n"
|
|
" configurable: true,\n"
|
|
" enumerable: true,\n"
|
|
"});\n"
|
|
"Object.defineProperty(obj1, 'prop', { "
|
|
" get: function() { return 153; },\n"
|
|
" set: function(value) { return this.prop_ = value; },\n"
|
|
" configurable: true,\n"
|
|
" enumerable: true,\n"
|
|
"});\n");
|
|
v8::Local<v8::Object> js_global =
|
|
env->Global()->GetPrototype().As<v8::Object>();
|
|
i::Handle<i::JSReceiver> js_obj1 =
|
|
v8::Utils::OpenHandle(*js_global->Get(env.local(), v8_str("obj1"))
|
|
.ToLocalChecked()
|
|
.As<v8::Object>());
|
|
USE(js_obj1);
|
|
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
CHECK(global);
|
|
const v8::HeapGraphNode* obj1 =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "obj1");
|
|
CHECK(obj1);
|
|
const v8::HeapGraphNode* func;
|
|
func = GetProperty(obj1, v8::HeapGraphEdge::kProperty, "get prop");
|
|
CHECK(func);
|
|
func = GetProperty(obj1, v8::HeapGraphEdge::kProperty, "set prop");
|
|
CHECK(func);
|
|
}
|
|
|
|
|
|
TEST(SlowCaseAccessors) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun("var obj1 = {};\n"
|
|
"for (var i = 0; i < 100; ++i) obj1['z' + i] = {};"
|
|
"obj1.__defineGetter__('propWithGetter', function Y() {\n"
|
|
" return 42;\n"
|
|
"});\n"
|
|
"obj1.__defineSetter__('propWithSetter', function Z(value) {\n"
|
|
" return this.value_ = value;\n"
|
|
"});\n");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
CHECK(global);
|
|
const v8::HeapGraphNode* obj1 =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "obj1");
|
|
CHECK(obj1);
|
|
const v8::HeapGraphNode* func;
|
|
func = GetProperty(obj1, v8::HeapGraphEdge::kProperty, "get propWithGetter");
|
|
CHECK(func);
|
|
func = GetProperty(obj1, v8::HeapGraphEdge::kProperty, "set propWithGetter");
|
|
CHECK(!func);
|
|
func = GetProperty(obj1, v8::HeapGraphEdge::kProperty, "set propWithSetter");
|
|
CHECK(func);
|
|
func = GetProperty(obj1, v8::HeapGraphEdge::kProperty, "get propWithSetter");
|
|
CHECK(!func);
|
|
}
|
|
|
|
|
|
TEST(HiddenPropertiesFastCase) {
|
|
v8::Isolate* isolate = CcTest::isolate();
|
|
LocalContext env;
|
|
v8::HandleScope scope(isolate);
|
|
v8::HeapProfiler* heap_profiler = isolate->GetHeapProfiler();
|
|
|
|
CompileRun(
|
|
"function C(x) { this.a = this; this.b = x; }\n"
|
|
"c = new C(2012);\n");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* c =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "c");
|
|
CHECK(c);
|
|
const v8::HeapGraphNode* hidden_props =
|
|
GetProperty(c, v8::HeapGraphEdge::kProperty, "<symbol>");
|
|
CHECK(!hidden_props);
|
|
|
|
v8::Local<v8::Value> cHandle =
|
|
env->Global()->Get(env.local(), v8_str("c")).ToLocalChecked();
|
|
CHECK(!cHandle.IsEmpty() && cHandle->IsObject());
|
|
cHandle->ToObject(env.local())
|
|
.ToLocalChecked()
|
|
->SetPrivate(env.local(),
|
|
v8::Private::ForApi(env->GetIsolate(), v8_str("key")),
|
|
v8_str("val"))
|
|
.FromJust();
|
|
|
|
snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
global = GetGlobalObject(snapshot);
|
|
c = GetProperty(global, v8::HeapGraphEdge::kProperty, "c");
|
|
CHECK(c);
|
|
hidden_props = GetProperty(c, v8::HeapGraphEdge::kProperty, "<symbol>");
|
|
CHECK(hidden_props);
|
|
}
|
|
|
|
|
|
TEST(AccessorInfo) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun("function foo(x) { }\n");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* foo =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "foo");
|
|
CHECK(foo);
|
|
const v8::HeapGraphNode* map =
|
|
GetProperty(foo, v8::HeapGraphEdge::kInternal, "map");
|
|
CHECK(map);
|
|
const v8::HeapGraphNode* descriptors =
|
|
GetProperty(map, v8::HeapGraphEdge::kInternal, "descriptors");
|
|
CHECK(descriptors);
|
|
const v8::HeapGraphNode* length_name =
|
|
GetProperty(descriptors, v8::HeapGraphEdge::kInternal, "2");
|
|
CHECK(length_name);
|
|
CHECK_EQ(0, strcmp("length", *v8::String::Utf8Value(length_name->GetName())));
|
|
const v8::HeapGraphNode* length_accessor =
|
|
GetProperty(descriptors, v8::HeapGraphEdge::kInternal, "4");
|
|
CHECK(length_accessor);
|
|
CHECK_EQ(0, strcmp("system / AccessorInfo",
|
|
*v8::String::Utf8Value(length_accessor->GetName())));
|
|
const v8::HeapGraphNode* name =
|
|
GetProperty(length_accessor, v8::HeapGraphEdge::kInternal, "name");
|
|
CHECK(name);
|
|
const v8::HeapGraphNode* getter =
|
|
GetProperty(length_accessor, v8::HeapGraphEdge::kInternal, "getter");
|
|
CHECK(getter);
|
|
const v8::HeapGraphNode* setter =
|
|
GetProperty(length_accessor, v8::HeapGraphEdge::kInternal, "setter");
|
|
CHECK(setter);
|
|
}
|
|
|
|
|
|
bool HasWeakEdge(const v8::HeapGraphNode* node) {
|
|
for (int i = 0; i < node->GetChildrenCount(); ++i) {
|
|
const v8::HeapGraphEdge* handle_edge = node->GetChild(i);
|
|
if (handle_edge->GetType() == v8::HeapGraphEdge::kWeak) return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
bool HasWeakGlobalHandle() {
|
|
v8::Isolate* isolate = CcTest::isolate();
|
|
v8::HeapProfiler* heap_profiler = isolate->GetHeapProfiler();
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* gc_roots = GetNode(
|
|
snapshot->GetRoot(), v8::HeapGraphNode::kSynthetic, "(GC roots)");
|
|
CHECK(gc_roots);
|
|
const v8::HeapGraphNode* global_handles = GetNode(
|
|
gc_roots, v8::HeapGraphNode::kSynthetic, "(Global handles)");
|
|
CHECK(global_handles);
|
|
return HasWeakEdge(global_handles);
|
|
}
|
|
|
|
|
|
static void PersistentHandleCallback(
|
|
const v8::WeakCallbackInfo<v8::Persistent<v8::Object> >& data) {
|
|
data.GetParameter()->Reset();
|
|
}
|
|
|
|
|
|
TEST(WeakGlobalHandle) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
|
|
CHECK(!HasWeakGlobalHandle());
|
|
|
|
v8::Persistent<v8::Object> handle(env->GetIsolate(),
|
|
v8::Object::New(env->GetIsolate()));
|
|
handle.SetWeak(&handle, PersistentHandleCallback,
|
|
v8::WeakCallbackType::kParameter);
|
|
|
|
CHECK(HasWeakGlobalHandle());
|
|
}
|
|
|
|
|
|
TEST(SfiAndJsFunctionWeakRefs) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun(
|
|
"fun = (function (x) { return function () { return x + 1; } })(1);");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
CHECK(global);
|
|
const v8::HeapGraphNode* fun =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "fun");
|
|
CHECK(!HasWeakEdge(fun));
|
|
const v8::HeapGraphNode* shared =
|
|
GetProperty(fun, v8::HeapGraphEdge::kInternal, "shared");
|
|
CHECK(!HasWeakEdge(shared));
|
|
}
|
|
|
|
|
|
TEST(NoDebugObjectInSnapshot) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CHECK(CcTest::i_isolate()->debug()->Load());
|
|
CompileRun("foo = {};");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* root = snapshot->GetRoot();
|
|
int globals_count = 0;
|
|
for (int i = 0; i < root->GetChildrenCount(); ++i) {
|
|
const v8::HeapGraphEdge* edge = root->GetChild(i);
|
|
if (edge->GetType() == v8::HeapGraphEdge::kShortcut) {
|
|
++globals_count;
|
|
const v8::HeapGraphNode* global = edge->GetToNode();
|
|
const v8::HeapGraphNode* foo =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "foo");
|
|
CHECK(foo);
|
|
}
|
|
}
|
|
CHECK_EQ(1, globals_count);
|
|
}
|
|
|
|
|
|
TEST(AllStrongGcRootsHaveNames) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun("foo = {};");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* gc_roots = GetNode(
|
|
snapshot->GetRoot(), v8::HeapGraphNode::kSynthetic, "(GC roots)");
|
|
CHECK(gc_roots);
|
|
const v8::HeapGraphNode* strong_roots = GetNode(
|
|
gc_roots, v8::HeapGraphNode::kSynthetic, "(Strong roots)");
|
|
CHECK(strong_roots);
|
|
for (int i = 0; i < strong_roots->GetChildrenCount(); ++i) {
|
|
const v8::HeapGraphEdge* edge = strong_roots->GetChild(i);
|
|
CHECK_EQ(v8::HeapGraphEdge::kInternal, edge->GetType());
|
|
v8::String::Utf8Value name(edge->GetName());
|
|
CHECK(isalpha(**name));
|
|
}
|
|
}
|
|
|
|
|
|
TEST(NoRefsToNonEssentialEntries) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
CompileRun("global_object = {};\n");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* global_object =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "global_object");
|
|
CHECK(global_object);
|
|
const v8::HeapGraphNode* properties =
|
|
GetProperty(global_object, v8::HeapGraphEdge::kInternal, "properties");
|
|
CHECK(!properties);
|
|
const v8::HeapGraphNode* elements =
|
|
GetProperty(global_object, v8::HeapGraphEdge::kInternal, "elements");
|
|
CHECK(!elements);
|
|
}
|
|
|
|
|
|
TEST(MapHasDescriptorsAndTransitions) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
CompileRun("obj = { a: 10 };\n");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* global_object =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "obj");
|
|
CHECK(global_object);
|
|
|
|
const v8::HeapGraphNode* map =
|
|
GetProperty(global_object, v8::HeapGraphEdge::kInternal, "map");
|
|
CHECK(map);
|
|
const v8::HeapGraphNode* own_descriptors = GetProperty(
|
|
map, v8::HeapGraphEdge::kInternal, "descriptors");
|
|
CHECK(own_descriptors);
|
|
const v8::HeapGraphNode* own_transitions = GetProperty(
|
|
map, v8::HeapGraphEdge::kInternal, "transitions");
|
|
CHECK(!own_transitions);
|
|
}
|
|
|
|
|
|
TEST(ManyLocalsInSharedContext) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
int num_objects = 6000;
|
|
CompileRun(
|
|
"var n = 6000;"
|
|
"var result = [];"
|
|
"result.push('(function outer() {');"
|
|
"for (var i = 0; i < n; i++) {"
|
|
" var f = 'function f_' + i + '() { ';"
|
|
" if (i > 0)"
|
|
" f += 'f_' + (i - 1) + '();';"
|
|
" f += ' }';"
|
|
" result.push(f);"
|
|
"}"
|
|
"result.push('return f_' + (n - 1) + ';');"
|
|
"result.push('})()');"
|
|
"var ok = eval(result.join('\\n'));");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
CHECK(global);
|
|
const v8::HeapGraphNode* ok_object =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "ok");
|
|
CHECK(ok_object);
|
|
const v8::HeapGraphNode* context_object =
|
|
GetProperty(ok_object, v8::HeapGraphEdge::kInternal, "context");
|
|
CHECK(context_object);
|
|
// Check the objects are not duplicated in the context.
|
|
CHECK_EQ(v8::internal::Context::MIN_CONTEXT_SLOTS + num_objects - 1,
|
|
context_object->GetChildrenCount());
|
|
// Check all the objects have got their names.
|
|
// ... well check just every 15th because otherwise it's too slow in debug.
|
|
for (int i = 0; i < num_objects - 1; i += 15) {
|
|
i::EmbeddedVector<char, 100> var_name;
|
|
i::SNPrintF(var_name, "f_%d", i);
|
|
const v8::HeapGraphNode* f_object = GetProperty(
|
|
context_object, v8::HeapGraphEdge::kContextVariable, var_name.start());
|
|
CHECK(f_object);
|
|
}
|
|
}
|
|
|
|
|
|
TEST(AllocationSitesAreVisible) {
|
|
LocalContext env;
|
|
v8::Isolate* isolate = env->GetIsolate();
|
|
v8::HandleScope scope(isolate);
|
|
v8::HeapProfiler* heap_profiler = isolate->GetHeapProfiler();
|
|
CompileRun(
|
|
"fun = function () { var a = [3, 2, 1]; return a; }\n"
|
|
"fun();");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
CHECK(global);
|
|
const v8::HeapGraphNode* fun_code =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "fun");
|
|
CHECK(fun_code);
|
|
const v8::HeapGraphNode* literals =
|
|
GetProperty(fun_code, v8::HeapGraphEdge::kInternal, "literals");
|
|
CHECK(literals);
|
|
CHECK_EQ(v8::HeapGraphNode::kArray, literals->GetType());
|
|
CHECK_EQ(1, literals->GetChildrenCount());
|
|
|
|
// The first value in the literals array should be the boilerplate,
|
|
// after an AllocationSite.
|
|
const v8::HeapGraphEdge* prop = literals->GetChild(0);
|
|
const v8::HeapGraphNode* allocation_site = prop->GetToNode();
|
|
v8::String::Utf8Value name(allocation_site->GetName());
|
|
CHECK_EQ(0, strcmp("system / AllocationSite", *name));
|
|
const v8::HeapGraphNode* transition_info =
|
|
GetProperty(allocation_site, v8::HeapGraphEdge::kInternal,
|
|
"transition_info");
|
|
CHECK(transition_info);
|
|
|
|
const v8::HeapGraphNode* elements =
|
|
GetProperty(transition_info, v8::HeapGraphEdge::kInternal,
|
|
"elements");
|
|
CHECK(elements);
|
|
CHECK_EQ(v8::HeapGraphNode::kArray, elements->GetType());
|
|
CHECK_EQ(v8::internal::FixedArray::SizeFor(3),
|
|
static_cast<int>(elements->GetShallowSize()));
|
|
|
|
v8::Local<v8::Value> array_val =
|
|
heap_profiler->FindObjectById(transition_info->GetId());
|
|
CHECK(array_val->IsArray());
|
|
v8::Local<v8::Array> array = v8::Local<v8::Array>::Cast(array_val);
|
|
// Verify the array is "a" in the code above.
|
|
CHECK_EQ(3u, array->Length());
|
|
CHECK(v8::Integer::New(isolate, 3)
|
|
->Equals(env.local(),
|
|
array->Get(env.local(), v8::Integer::New(isolate, 0))
|
|
.ToLocalChecked())
|
|
.FromJust());
|
|
CHECK(v8::Integer::New(isolate, 2)
|
|
->Equals(env.local(),
|
|
array->Get(env.local(), v8::Integer::New(isolate, 1))
|
|
.ToLocalChecked())
|
|
.FromJust());
|
|
CHECK(v8::Integer::New(isolate, 1)
|
|
->Equals(env.local(),
|
|
array->Get(env.local(), v8::Integer::New(isolate, 2))
|
|
.ToLocalChecked())
|
|
.FromJust());
|
|
}
|
|
|
|
|
|
TEST(JSFunctionHasCodeLink) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
CompileRun("function foo(x, y) { return x + y; }\n");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* foo_func =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "foo");
|
|
CHECK(foo_func);
|
|
const v8::HeapGraphNode* code =
|
|
GetProperty(foo_func, v8::HeapGraphEdge::kInternal, "code");
|
|
CHECK(code);
|
|
}
|
|
|
|
|
|
static const v8::HeapGraphNode* GetNodeByPath(const v8::HeapSnapshot* snapshot,
|
|
const char* path[],
|
|
int depth) {
|
|
const v8::HeapGraphNode* node = snapshot->GetRoot();
|
|
for (int current_depth = 0; current_depth < depth; ++current_depth) {
|
|
int i, count = node->GetChildrenCount();
|
|
for (i = 0; i < count; ++i) {
|
|
const v8::HeapGraphEdge* edge = node->GetChild(i);
|
|
const v8::HeapGraphNode* to_node = edge->GetToNode();
|
|
v8::String::Utf8Value edge_name(edge->GetName());
|
|
v8::String::Utf8Value node_name(to_node->GetName());
|
|
i::EmbeddedVector<char, 100> name;
|
|
i::SNPrintF(name, "%s::%s", *edge_name, *node_name);
|
|
if (strstr(name.start(), path[current_depth])) {
|
|
node = to_node;
|
|
break;
|
|
}
|
|
}
|
|
if (i == count) return NULL;
|
|
}
|
|
return node;
|
|
}
|
|
|
|
|
|
TEST(CheckCodeNames) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
CompileRun("var a = 1.1;");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
|
|
const char* stub_path[] = {
|
|
"::(GC roots)",
|
|
"::(Strong roots)",
|
|
"code_stubs::",
|
|
"::(ArraySingleArgumentConstructorStub code)"
|
|
};
|
|
const v8::HeapGraphNode* node = GetNodeByPath(snapshot,
|
|
stub_path, arraysize(stub_path));
|
|
CHECK(node);
|
|
|
|
const char* builtin_path1[] = {"::(GC roots)", "::(Builtins)",
|
|
"::(KeyedLoadIC_Megamorphic builtin)"};
|
|
node = GetNodeByPath(snapshot, builtin_path1, arraysize(builtin_path1));
|
|
CHECK(node);
|
|
|
|
const char* builtin_path2[] = {"::(GC roots)", "::(Builtins)",
|
|
"::(CompileLazy builtin)"};
|
|
node = GetNodeByPath(snapshot, builtin_path2, arraysize(builtin_path2));
|
|
CHECK(node);
|
|
v8::String::Utf8Value node_name(node->GetName());
|
|
CHECK_EQ(0, strcmp("(CompileLazy builtin)", *node_name));
|
|
}
|
|
|
|
|
|
static const char* record_trace_tree_source =
|
|
"var topFunctions = [];\n"
|
|
"var global = this;\n"
|
|
"function generateFunctions(width, depth) {\n"
|
|
" var script = [];\n"
|
|
" for (var i = 0; i < width; i++) {\n"
|
|
" for (var j = 0; j < depth; j++) {\n"
|
|
" script.push('function f_' + i + '_' + j + '(x) {\\n');\n"
|
|
" script.push(' try {\\n');\n"
|
|
" if (j < depth-2) {\n"
|
|
" script.push(' return f_' + i + '_' + (j+1) + '(x+1);\\n');\n"
|
|
" } else if (j == depth - 2) {\n"
|
|
" script.push(' return new f_' + i + '_' + (depth - 1) + '();\\n');\n"
|
|
" } else if (j == depth - 1) {\n"
|
|
" script.push(' this.ts = Date.now();\\n');\n"
|
|
" }\n"
|
|
" script.push(' } catch (e) {}\\n');\n"
|
|
" script.push('}\\n');\n"
|
|
" \n"
|
|
" }\n"
|
|
" }\n"
|
|
" var script = script.join('');\n"
|
|
" // throw script;\n"
|
|
" global.eval(script);\n"
|
|
" for (var i = 0; i < width; i++) {\n"
|
|
" topFunctions.push(this['f_' + i + '_0']);\n"
|
|
" }\n"
|
|
"}\n"
|
|
"\n"
|
|
"var width = 3;\n"
|
|
"var depth = 3;\n"
|
|
"generateFunctions(width, depth);\n"
|
|
"var instances = [];\n"
|
|
"function start() {\n"
|
|
" for (var i = 0; i < width; i++) {\n"
|
|
" instances.push(topFunctions[i](0));\n"
|
|
" }\n"
|
|
"}\n"
|
|
"\n"
|
|
"for (var i = 0; i < 100; i++) start();\n";
|
|
|
|
|
|
static AllocationTraceNode* FindNode(
|
|
AllocationTracker* tracker, const Vector<const char*>& names) {
|
|
AllocationTraceNode* node = tracker->trace_tree()->root();
|
|
for (int i = 0; node != NULL && i < names.length(); i++) {
|
|
const char* name = names[i];
|
|
Vector<AllocationTraceNode*> children = node->children();
|
|
node = NULL;
|
|
for (int j = 0; j < children.length(); j++) {
|
|
unsigned index = children[j]->function_info_index();
|
|
AllocationTracker::FunctionInfo* info =
|
|
tracker->function_info_list()[index];
|
|
if (info && strcmp(info->name, name) == 0) {
|
|
node = children[j];
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return node;
|
|
}
|
|
|
|
|
|
TEST(ArrayGrowLeftTrim) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
heap_profiler->StartTrackingHeapObjects(true);
|
|
|
|
CompileRun(
|
|
"var a = [];\n"
|
|
"for (var i = 0; i < 5; ++i)\n"
|
|
" a[i] = i;\n"
|
|
"for (var i = 0; i < 3; ++i)\n"
|
|
" a.shift();\n");
|
|
|
|
const char* names[] = {""};
|
|
AllocationTracker* tracker =
|
|
reinterpret_cast<i::HeapProfiler*>(heap_profiler)->allocation_tracker();
|
|
CHECK(tracker);
|
|
// Resolve all function locations.
|
|
tracker->PrepareForSerialization();
|
|
// Print for better diagnostics in case of failure.
|
|
tracker->trace_tree()->Print(tracker);
|
|
|
|
AllocationTraceNode* node = FindNode(tracker, ArrayVector(names));
|
|
CHECK(node);
|
|
CHECK_GE(node->allocation_count(), 2u);
|
|
CHECK_GE(node->allocation_size(), 4u * 5u);
|
|
heap_profiler->StopTrackingHeapObjects();
|
|
}
|
|
|
|
TEST(TrackHeapAllocationsWithInlining) {
|
|
v8::HandleScope scope(v8::Isolate::GetCurrent());
|
|
LocalContext env;
|
|
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
heap_profiler->StartTrackingHeapObjects(true);
|
|
|
|
CompileRun(record_trace_tree_source);
|
|
|
|
AllocationTracker* tracker =
|
|
reinterpret_cast<i::HeapProfiler*>(heap_profiler)->allocation_tracker();
|
|
CHECK(tracker);
|
|
// Resolve all function locations.
|
|
tracker->PrepareForSerialization();
|
|
// Print for better diagnostics in case of failure.
|
|
tracker->trace_tree()->Print(tracker);
|
|
|
|
const char* names[] = {"", "start", "f_0_0"};
|
|
AllocationTraceNode* node = FindNode(tracker, ArrayVector(names));
|
|
CHECK(node);
|
|
CHECK_GE(node->allocation_count(), 12u);
|
|
CHECK_GE(node->allocation_size(), 4 * node->allocation_count());
|
|
heap_profiler->StopTrackingHeapObjects();
|
|
}
|
|
|
|
TEST(TrackHeapAllocationsWithoutInlining) {
|
|
i::FLAG_turbo_inlining = false;
|
|
i::FLAG_max_inlined_source_size = 0; // Disable inlining
|
|
v8::HandleScope scope(v8::Isolate::GetCurrent());
|
|
LocalContext env;
|
|
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
heap_profiler->StartTrackingHeapObjects(true);
|
|
|
|
CompileRun(record_trace_tree_source);
|
|
|
|
AllocationTracker* tracker =
|
|
reinterpret_cast<i::HeapProfiler*>(heap_profiler)->allocation_tracker();
|
|
CHECK(tracker);
|
|
// Resolve all function locations.
|
|
tracker->PrepareForSerialization();
|
|
// Print for better diagnostics in case of failure.
|
|
tracker->trace_tree()->Print(tracker);
|
|
|
|
const char* names[] = {"", "start", "f_0_0", "f_0_1", "f_0_2"};
|
|
AllocationTraceNode* node = FindNode(tracker, ArrayVector(names));
|
|
CHECK(node);
|
|
CHECK_GE(node->allocation_count(), 100u);
|
|
CHECK_GE(node->allocation_size(), 4 * node->allocation_count());
|
|
heap_profiler->StopTrackingHeapObjects();
|
|
}
|
|
|
|
|
|
static const char* inline_heap_allocation_source =
|
|
"function f_0(x) {\n"
|
|
" return f_1(x+1);\n"
|
|
"}\n"
|
|
"%NeverOptimizeFunction(f_0);\n"
|
|
"function f_1(x) {\n"
|
|
" return new f_2(x+1);\n"
|
|
"}\n"
|
|
"%NeverOptimizeFunction(f_1);\n"
|
|
"function f_2(x) {\n"
|
|
" this.foo = x;\n"
|
|
"}\n"
|
|
"var instances = [];\n"
|
|
"function start() {\n"
|
|
" instances.push(f_0(0));\n"
|
|
"}\n"
|
|
"\n"
|
|
"for (var i = 0; i < 100; i++) start();\n";
|
|
|
|
|
|
TEST(TrackBumpPointerAllocations) {
|
|
i::FLAG_allow_natives_syntax = true;
|
|
v8::HandleScope scope(v8::Isolate::GetCurrent());
|
|
LocalContext env;
|
|
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
const char* names[] = {"", "start", "f_0", "f_1"};
|
|
// First check that normally all allocations are recorded.
|
|
{
|
|
heap_profiler->StartTrackingHeapObjects(true);
|
|
|
|
CompileRun(inline_heap_allocation_source);
|
|
|
|
AllocationTracker* tracker =
|
|
reinterpret_cast<i::HeapProfiler*>(heap_profiler)->allocation_tracker();
|
|
CHECK(tracker);
|
|
// Resolve all function locations.
|
|
tracker->PrepareForSerialization();
|
|
// Print for better diagnostics in case of failure.
|
|
tracker->trace_tree()->Print(tracker);
|
|
|
|
AllocationTraceNode* node = FindNode(tracker, ArrayVector(names));
|
|
CHECK(node);
|
|
CHECK_GE(node->allocation_count(), 100u);
|
|
CHECK_GE(node->allocation_size(), 4 * node->allocation_count());
|
|
heap_profiler->StopTrackingHeapObjects();
|
|
}
|
|
|
|
{
|
|
heap_profiler->StartTrackingHeapObjects(true);
|
|
|
|
// Now check that not all allocations are tracked if we manually reenable
|
|
// inline allocations.
|
|
CHECK(CcTest::heap()->inline_allocation_disabled());
|
|
CcTest::heap()->EnableInlineAllocation();
|
|
|
|
CompileRun(inline_heap_allocation_source);
|
|
|
|
AllocationTracker* tracker =
|
|
reinterpret_cast<i::HeapProfiler*>(heap_profiler)->allocation_tracker();
|
|
CHECK(tracker);
|
|
// Resolve all function locations.
|
|
tracker->PrepareForSerialization();
|
|
// Print for better diagnostics in case of failure.
|
|
tracker->trace_tree()->Print(tracker);
|
|
|
|
AllocationTraceNode* node = FindNode(tracker, ArrayVector(names));
|
|
CHECK(node);
|
|
CHECK_LT(node->allocation_count(), 100u);
|
|
|
|
CcTest::heap()->DisableInlineAllocation();
|
|
heap_profiler->StopTrackingHeapObjects();
|
|
}
|
|
}
|
|
|
|
|
|
TEST(TrackV8ApiAllocation) {
|
|
v8::HandleScope scope(v8::Isolate::GetCurrent());
|
|
LocalContext env;
|
|
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
const char* names[] = { "(V8 API)" };
|
|
heap_profiler->StartTrackingHeapObjects(true);
|
|
|
|
v8::Local<v8::Object> o1 = v8::Object::New(env->GetIsolate());
|
|
o1->Clone();
|
|
|
|
AllocationTracker* tracker =
|
|
reinterpret_cast<i::HeapProfiler*>(heap_profiler)->allocation_tracker();
|
|
CHECK(tracker);
|
|
// Resolve all function locations.
|
|
tracker->PrepareForSerialization();
|
|
// Print for better diagnostics in case of failure.
|
|
tracker->trace_tree()->Print(tracker);
|
|
|
|
AllocationTraceNode* node = FindNode(tracker, ArrayVector(names));
|
|
CHECK(node);
|
|
CHECK_GE(node->allocation_count(), 2u);
|
|
CHECK_GE(node->allocation_size(), 4 * node->allocation_count());
|
|
heap_profiler->StopTrackingHeapObjects();
|
|
}
|
|
|
|
|
|
TEST(ArrayBufferAndArrayBufferView) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
CompileRun("arr1 = new Uint32Array(100);\n");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* arr1_obj =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "arr1");
|
|
CHECK(arr1_obj);
|
|
const v8::HeapGraphNode* arr1_buffer =
|
|
GetProperty(arr1_obj, v8::HeapGraphEdge::kInternal, "buffer");
|
|
CHECK(arr1_buffer);
|
|
const v8::HeapGraphNode* backing_store =
|
|
GetProperty(arr1_buffer, v8::HeapGraphEdge::kInternal, "backing_store");
|
|
CHECK(backing_store);
|
|
CHECK_EQ(400, static_cast<int>(backing_store->GetShallowSize()));
|
|
}
|
|
|
|
|
|
static int GetRetainersCount(const v8::HeapSnapshot* snapshot,
|
|
const v8::HeapGraphNode* node) {
|
|
int count = 0;
|
|
for (int i = 0, l = snapshot->GetNodesCount(); i < l; ++i) {
|
|
const v8::HeapGraphNode* parent = snapshot->GetNode(i);
|
|
for (int j = 0, l2 = parent->GetChildrenCount(); j < l2; ++j) {
|
|
if (parent->GetChild(j)->GetToNode() == node) {
|
|
++count;
|
|
}
|
|
}
|
|
}
|
|
return count;
|
|
}
|
|
|
|
|
|
TEST(ArrayBufferSharedBackingStore) {
|
|
LocalContext env;
|
|
v8::Isolate* isolate = env->GetIsolate();
|
|
v8::HandleScope handle_scope(isolate);
|
|
v8::HeapProfiler* heap_profiler = isolate->GetHeapProfiler();
|
|
|
|
v8::Local<v8::ArrayBuffer> ab = v8::ArrayBuffer::New(isolate, 1024);
|
|
CHECK_EQ(1024, static_cast<int>(ab->ByteLength()));
|
|
CHECK(!ab->IsExternal());
|
|
v8::ArrayBuffer::Contents ab_contents = ab->Externalize();
|
|
CHECK(ab->IsExternal());
|
|
|
|
CHECK_EQ(1024, static_cast<int>(ab_contents.ByteLength()));
|
|
void* data = ab_contents.Data();
|
|
CHECK(data != NULL);
|
|
v8::Local<v8::ArrayBuffer> ab2 =
|
|
v8::ArrayBuffer::New(isolate, data, ab_contents.ByteLength());
|
|
CHECK(ab2->IsExternal());
|
|
env->Global()->Set(env.local(), v8_str("ab1"), ab).FromJust();
|
|
env->Global()->Set(env.local(), v8_str("ab2"), ab2).FromJust();
|
|
|
|
v8::Local<v8::Value> result = CompileRun("ab2.byteLength");
|
|
CHECK_EQ(1024, result->Int32Value(env.local()).FromJust());
|
|
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* ab1_node =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "ab1");
|
|
CHECK(ab1_node);
|
|
const v8::HeapGraphNode* ab1_data =
|
|
GetProperty(ab1_node, v8::HeapGraphEdge::kInternal, "backing_store");
|
|
CHECK(ab1_data);
|
|
const v8::HeapGraphNode* ab2_node =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "ab2");
|
|
CHECK(ab2_node);
|
|
const v8::HeapGraphNode* ab2_data =
|
|
GetProperty(ab2_node, v8::HeapGraphEdge::kInternal, "backing_store");
|
|
CHECK(ab2_data);
|
|
CHECK_EQ(ab1_data, ab2_data);
|
|
CHECK_EQ(2, GetRetainersCount(snapshot, ab1_data));
|
|
free(data);
|
|
}
|
|
|
|
|
|
TEST(BoxObject) {
|
|
v8::Isolate* isolate = CcTest::isolate();
|
|
v8::HandleScope scope(isolate);
|
|
LocalContext env;
|
|
v8::Local<v8::Object> global_proxy = env->Global();
|
|
v8::Local<v8::Object> global = global_proxy->GetPrototype().As<v8::Object>();
|
|
|
|
i::Factory* factory = CcTest::i_isolate()->factory();
|
|
i::Handle<i::String> string = factory->NewStringFromStaticChars("string");
|
|
i::Handle<i::Object> box = factory->NewBox(string);
|
|
global->Set(env.local(), 0, v8::ToApiHandle<v8::Object>(box)).FromJust();
|
|
|
|
v8::HeapProfiler* heap_profiler = isolate->GetHeapProfiler();
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global_node = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* box_node =
|
|
GetProperty(global_node, v8::HeapGraphEdge::kElement, "0");
|
|
CHECK(box_node);
|
|
v8::String::Utf8Value box_node_name(box_node->GetName());
|
|
CHECK_EQ(0, strcmp("system / Box", *box_node_name));
|
|
const v8::HeapGraphNode* box_value =
|
|
GetProperty(box_node, v8::HeapGraphEdge::kInternal, "value");
|
|
CHECK(box_value);
|
|
}
|
|
|
|
|
|
TEST(WeakContainers) {
|
|
i::FLAG_allow_natives_syntax = true;
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
if (!CcTest::i_isolate()->use_crankshaft()) return;
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
CompileRun(
|
|
"function foo(a) { return a.x; }\n"
|
|
"obj = {x : 123};\n"
|
|
"foo(obj);\n"
|
|
"foo(obj);\n"
|
|
"%OptimizeFunctionOnNextCall(foo);\n"
|
|
"foo(obj);\n");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* obj =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "obj");
|
|
CHECK(obj);
|
|
const v8::HeapGraphNode* map =
|
|
GetProperty(obj, v8::HeapGraphEdge::kInternal, "map");
|
|
CHECK(map);
|
|
const v8::HeapGraphNode* dependent_code =
|
|
GetProperty(map, v8::HeapGraphEdge::kInternal, "dependent_code");
|
|
if (!dependent_code) return;
|
|
int count = dependent_code->GetChildrenCount();
|
|
CHECK_NE(0, count);
|
|
for (int i = 0; i < count; ++i) {
|
|
const v8::HeapGraphEdge* prop = dependent_code->GetChild(i);
|
|
CHECK_EQ(v8::HeapGraphEdge::kInternal, prop->GetType());
|
|
}
|
|
}
|
|
|
|
|
|
static inline i::Address ToAddress(int n) {
|
|
return reinterpret_cast<i::Address>(n);
|
|
}
|
|
|
|
|
|
TEST(AddressToTraceMap) {
|
|
i::AddressToTraceMap map;
|
|
|
|
CHECK_EQ(0u, map.GetTraceNodeId(ToAddress(150)));
|
|
|
|
// [0x100, 0x200) -> 1
|
|
map.AddRange(ToAddress(0x100), 0x100, 1U);
|
|
CHECK_EQ(0u, map.GetTraceNodeId(ToAddress(0x50)));
|
|
CHECK_EQ(1u, map.GetTraceNodeId(ToAddress(0x100)));
|
|
CHECK_EQ(1u, map.GetTraceNodeId(ToAddress(0x150)));
|
|
CHECK_EQ(0u, map.GetTraceNodeId(ToAddress(0x100 + 0x100)));
|
|
CHECK_EQ(1u, map.size());
|
|
|
|
// [0x100, 0x200) -> 1, [0x200, 0x300) -> 2
|
|
map.AddRange(ToAddress(0x200), 0x100, 2U);
|
|
CHECK_EQ(2u, map.GetTraceNodeId(ToAddress(0x2a0)));
|
|
CHECK_EQ(2u, map.size());
|
|
|
|
// [0x100, 0x180) -> 1, [0x180, 0x280) -> 3, [0x280, 0x300) -> 2
|
|
map.AddRange(ToAddress(0x180), 0x100, 3U);
|
|
CHECK_EQ(1u, map.GetTraceNodeId(ToAddress(0x17F)));
|
|
CHECK_EQ(2u, map.GetTraceNodeId(ToAddress(0x280)));
|
|
CHECK_EQ(3u, map.GetTraceNodeId(ToAddress(0x180)));
|
|
CHECK_EQ(3u, map.size());
|
|
|
|
// [0x100, 0x180) -> 1, [0x180, 0x280) -> 3, [0x280, 0x300) -> 2,
|
|
// [0x400, 0x500) -> 4
|
|
map.AddRange(ToAddress(0x400), 0x100, 4U);
|
|
CHECK_EQ(1u, map.GetTraceNodeId(ToAddress(0x17F)));
|
|
CHECK_EQ(2u, map.GetTraceNodeId(ToAddress(0x280)));
|
|
CHECK_EQ(3u, map.GetTraceNodeId(ToAddress(0x180)));
|
|
CHECK_EQ(4u, map.GetTraceNodeId(ToAddress(0x450)));
|
|
CHECK_EQ(0u, map.GetTraceNodeId(ToAddress(0x500)));
|
|
CHECK_EQ(0u, map.GetTraceNodeId(ToAddress(0x350)));
|
|
CHECK_EQ(4u, map.size());
|
|
|
|
// [0x100, 0x180) -> 1, [0x180, 0x200) -> 3, [0x200, 0x600) -> 5
|
|
map.AddRange(ToAddress(0x200), 0x400, 5U);
|
|
CHECK_EQ(5u, map.GetTraceNodeId(ToAddress(0x200)));
|
|
CHECK_EQ(5u, map.GetTraceNodeId(ToAddress(0x400)));
|
|
CHECK_EQ(3u, map.size());
|
|
|
|
// [0x100, 0x180) -> 1, [0x180, 0x200) -> 7, [0x200, 0x600) ->5
|
|
map.AddRange(ToAddress(0x180), 0x80, 6U);
|
|
map.AddRange(ToAddress(0x180), 0x80, 7U);
|
|
CHECK_EQ(7u, map.GetTraceNodeId(ToAddress(0x180)));
|
|
CHECK_EQ(5u, map.GetTraceNodeId(ToAddress(0x200)));
|
|
CHECK_EQ(3u, map.size());
|
|
|
|
map.Clear();
|
|
CHECK_EQ(0u, map.size());
|
|
CHECK_EQ(0u, map.GetTraceNodeId(ToAddress(0x400)));
|
|
}
|
|
|
|
|
|
static const v8::AllocationProfile::Node* FindAllocationProfileNode(
|
|
v8::AllocationProfile& profile, const Vector<const char*>& names) {
|
|
v8::AllocationProfile::Node* node = profile.GetRootNode();
|
|
for (int i = 0; node != nullptr && i < names.length(); ++i) {
|
|
const char* name = names[i];
|
|
auto children = node->children;
|
|
node = nullptr;
|
|
for (v8::AllocationProfile::Node* child : children) {
|
|
v8::String::Utf8Value child_name(child->name);
|
|
if (strcmp(*child_name, name) == 0) {
|
|
node = child;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return node;
|
|
}
|
|
|
|
static void CheckNoZeroCountNodes(v8::AllocationProfile::Node* node) {
|
|
for (auto alloc : node->allocations) {
|
|
CHECK_GT(alloc.count, 0u);
|
|
}
|
|
for (auto child : node->children) {
|
|
CheckNoZeroCountNodes(child);
|
|
}
|
|
}
|
|
|
|
TEST(SamplingHeapProfiler) {
|
|
v8::HandleScope scope(v8::Isolate::GetCurrent());
|
|
LocalContext env;
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
// Turn off always_opt. Inlining can cause stack traces to be shorter than
|
|
// what we expect in this test.
|
|
v8::internal::FLAG_always_opt = false;
|
|
|
|
// Suppress randomness to avoid flakiness in tests.
|
|
v8::internal::FLAG_sampling_heap_profiler_suppress_randomness = true;
|
|
|
|
const char* script_source =
|
|
"var A = [];\n"
|
|
"function bar(size) { return new Array(size); }\n"
|
|
"var foo = function() {\n"
|
|
" for (var i = 0; i < 1024; ++i) {\n"
|
|
" A[i] = bar(1024);\n"
|
|
" }\n"
|
|
"}\n"
|
|
"foo();";
|
|
|
|
// Sample should be empty if requested before sampling has started.
|
|
{
|
|
v8::AllocationProfile* profile = heap_profiler->GetAllocationProfile();
|
|
CHECK(profile == nullptr);
|
|
}
|
|
|
|
int count_1024 = 0;
|
|
{
|
|
heap_profiler->StartSamplingHeapProfiler(1024);
|
|
CompileRun(script_source);
|
|
|
|
std::unique_ptr<v8::AllocationProfile> profile(
|
|
heap_profiler->GetAllocationProfile());
|
|
CHECK(profile);
|
|
|
|
const char* names[] = {"", "foo", "bar"};
|
|
auto node_bar = FindAllocationProfileNode(*profile, ArrayVector(names));
|
|
CHECK(node_bar);
|
|
|
|
// Count the number of allocations we sampled from bar.
|
|
for (auto allocation : node_bar->allocations) {
|
|
count_1024 += allocation.count;
|
|
}
|
|
|
|
heap_profiler->StopSamplingHeapProfiler();
|
|
}
|
|
|
|
// Samples should get cleared once sampling is stopped.
|
|
{
|
|
v8::AllocationProfile* profile = heap_profiler->GetAllocationProfile();
|
|
CHECK(profile == nullptr);
|
|
}
|
|
|
|
// Sampling at a higher rate should give us similar numbers of objects.
|
|
{
|
|
heap_profiler->StartSamplingHeapProfiler(128);
|
|
CompileRun(script_source);
|
|
|
|
std::unique_ptr<v8::AllocationProfile> profile(
|
|
heap_profiler->GetAllocationProfile());
|
|
CHECK(profile);
|
|
|
|
const char* names[] = {"", "foo", "bar"};
|
|
auto node_bar = FindAllocationProfileNode(*profile, ArrayVector(names));
|
|
CHECK(node_bar);
|
|
|
|
// Count the number of allocations we sampled from bar.
|
|
int count_128 = 0;
|
|
for (auto allocation : node_bar->allocations) {
|
|
count_128 += allocation.count;
|
|
}
|
|
|
|
// We should have similar unsampled counts of allocations. Though
|
|
// we will sample different numbers of objects at different rates,
|
|
// the unsampling process should produce similar final estimates
|
|
// at the true number of allocations. However, the process to
|
|
// determine these unsampled counts is probabilisitic so we need to
|
|
// account for error.
|
|
double max_count = std::max(count_128, count_1024);
|
|
double min_count = std::min(count_128, count_1024);
|
|
double percent_difference = (max_count - min_count) / min_count;
|
|
CHECK_LT(percent_difference, 0.15);
|
|
|
|
heap_profiler->StopSamplingHeapProfiler();
|
|
}
|
|
|
|
// A more complicated test cases with deeper call graph and dynamically
|
|
// generated function names.
|
|
{
|
|
heap_profiler->StartSamplingHeapProfiler(64);
|
|
CompileRun(record_trace_tree_source);
|
|
|
|
std::unique_ptr<v8::AllocationProfile> profile(
|
|
heap_profiler->GetAllocationProfile());
|
|
CHECK(profile);
|
|
|
|
const char* names1[] = {"", "start", "f_0_0", "f_0_1", "f_0_2"};
|
|
auto node1 = FindAllocationProfileNode(*profile, ArrayVector(names1));
|
|
CHECK(node1);
|
|
|
|
const char* names2[] = {"", "generateFunctions"};
|
|
auto node2 = FindAllocationProfileNode(*profile, ArrayVector(names2));
|
|
CHECK(node2);
|
|
|
|
heap_profiler->StopSamplingHeapProfiler();
|
|
}
|
|
|
|
// A test case with scripts unloaded before profile gathered
|
|
{
|
|
heap_profiler->StartSamplingHeapProfiler(64);
|
|
CompileRun(
|
|
"for (var i = 0; i < 1024; i++) {\n"
|
|
" eval(\"new Array(100)\");\n"
|
|
"}\n");
|
|
|
|
CcTest::CollectAllGarbage(i::Heap::kFinalizeIncrementalMarkingMask);
|
|
|
|
std::unique_ptr<v8::AllocationProfile> profile(
|
|
heap_profiler->GetAllocationProfile());
|
|
CHECK(profile);
|
|
|
|
CheckNoZeroCountNodes(profile->GetRootNode());
|
|
|
|
heap_profiler->StopSamplingHeapProfiler();
|
|
}
|
|
}
|
|
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TEST(SamplingHeapProfilerApiAllocation) {
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v8::HandleScope scope(v8::Isolate::GetCurrent());
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LocalContext env;
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v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
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// Suppress randomness to avoid flakiness in tests.
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v8::internal::FLAG_sampling_heap_profiler_suppress_randomness = true;
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heap_profiler->StartSamplingHeapProfiler(256);
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for (int i = 0; i < 8 * 1024; ++i) v8::Object::New(env->GetIsolate());
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std::unique_ptr<v8::AllocationProfile> profile(
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heap_profiler->GetAllocationProfile());
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CHECK(profile);
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const char* names[] = {"(V8 API)"};
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auto node = FindAllocationProfileNode(*profile, ArrayVector(names));
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CHECK(node);
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heap_profiler->StopSamplingHeapProfiler();
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}
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TEST(SamplingHeapProfilerLeftTrimming) {
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v8::HandleScope scope(v8::Isolate::GetCurrent());
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LocalContext env;
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v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
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// Suppress randomness to avoid flakiness in tests.
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v8::internal::FLAG_sampling_heap_profiler_suppress_randomness = true;
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heap_profiler->StartSamplingHeapProfiler(64);
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CompileRun(
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"for (var j = 0; j < 500; ++j) {\n"
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" var a = [];\n"
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" for (var i = 0; i < 5; ++i)\n"
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" a[i] = i;\n"
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" for (var i = 0; i < 3; ++i)\n"
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" a.shift();\n"
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"}\n");
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CcTest::CollectGarbage(v8::internal::NEW_SPACE);
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// Should not crash.
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heap_profiler->StopSamplingHeapProfiler();
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}
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