5c461ae868
This reverts commit d607f1e72d.
Reason for revert: Suspected cause of hanging tests:
https://bugs.chromium.org/p/v8/issues/detail?id=6927#c13
Original change's description:
> [Memory] Move GetRandomMmapAddr from base::OS platform to v8::internal.
>
> - Moves GetRandomMmapAddr from platform to v8::internal allocation
> primitives, in preparation for delegating this to the embedder.
> - Adds hint parameters to OS functions that used to use this function.
>
> Bug: chromium:756050
> Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
> Change-Id: Iad72e6eac9c08a3e22c2cd2b2905623b8e514ae0
> Reviewed-on: https://chromium-review.googlesource.com/677777
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Commit-Queue: Bill Budge <bbudge@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#48124}
TBR=bbudge@chromium.org,ulan@chromium.org
# Not skipping CQ checks because original CL landed > 1 day ago.
Bug: chromium:756050
Change-Id: I2c515934906e67b47ceea2863bc2992ac1d23ab3
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Reviewed-on: https://chromium-review.googlesource.com/726319
Commit-Queue: Bill Budge <bbudge@chromium.org>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48701}
121 lines
4.0 KiB
C++
121 lines
4.0 KiB
C++
// Copyright 2014 the V8 project authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
#include <cmath>
|
|
#include <iostream>
|
|
#include <limits>
|
|
|
|
#include "src/objects.h"
|
|
#include "src/objects-inl.h"
|
|
|
|
#include "src/handles.h"
|
|
#include "src/handles-inl.h"
|
|
|
|
#include "src/heap/heap.h"
|
|
#include "test/unittests/test-utils.h"
|
|
#include "testing/gtest/include/gtest/gtest.h"
|
|
|
|
namespace v8 {
|
|
namespace internal {
|
|
|
|
typedef TestWithIsolate HeapTest;
|
|
|
|
double Round(double x) {
|
|
// Round to three digits.
|
|
return floor(x * 1000 + 0.5) / 1000;
|
|
}
|
|
|
|
|
|
void CheckEqualRounded(double expected, double actual) {
|
|
expected = Round(expected);
|
|
actual = Round(actual);
|
|
EXPECT_DOUBLE_EQ(expected, actual);
|
|
}
|
|
|
|
|
|
TEST(Heap, HeapGrowingFactor) {
|
|
CheckEqualRounded(Heap::kMaxHeapGrowingFactor,
|
|
Heap::HeapGrowingFactor(34, 1, 4.0));
|
|
CheckEqualRounded(3.553, Heap::HeapGrowingFactor(45, 1, 4.0));
|
|
CheckEqualRounded(2.830, Heap::HeapGrowingFactor(50, 1, 4.0));
|
|
CheckEqualRounded(1.478, Heap::HeapGrowingFactor(100, 1, 4.0));
|
|
CheckEqualRounded(1.193, Heap::HeapGrowingFactor(200, 1, 4.0));
|
|
CheckEqualRounded(1.121, Heap::HeapGrowingFactor(300, 1, 4.0));
|
|
CheckEqualRounded(Heap::HeapGrowingFactor(300, 1, 4.0),
|
|
Heap::HeapGrowingFactor(600, 2, 4.0));
|
|
CheckEqualRounded(Heap::kMinHeapGrowingFactor,
|
|
Heap::HeapGrowingFactor(400, 1, 4.0));
|
|
}
|
|
|
|
TEST(Heap, MaxHeapGrowingFactor) {
|
|
CheckEqualRounded(
|
|
1.3, Heap::MaxHeapGrowingFactor(Heap::kMinOldGenerationSize * MB));
|
|
CheckEqualRounded(
|
|
1.600, Heap::MaxHeapGrowingFactor(Heap::kMaxOldGenerationSize / 2 * MB));
|
|
CheckEqualRounded(
|
|
1.999,
|
|
Heap::MaxHeapGrowingFactor(
|
|
(Heap::kMaxOldGenerationSize - Heap::kPointerMultiplier) * MB));
|
|
CheckEqualRounded(4.0,
|
|
Heap::MaxHeapGrowingFactor(
|
|
static_cast<size_t>(Heap::kMaxOldGenerationSize) * MB));
|
|
}
|
|
|
|
TEST(Heap, SemiSpaceSize) {
|
|
const size_t KB = static_cast<size_t>(i::KB);
|
|
const size_t MB = static_cast<size_t>(i::MB);
|
|
const size_t pm = i::Heap::kPointerMultiplier;
|
|
ASSERT_EQ(1u * pm * MB / 2, i::Heap::ComputeMaxSemiSpaceSize(0u) * KB);
|
|
ASSERT_EQ(1u * pm * MB / 2, i::Heap::ComputeMaxSemiSpaceSize(512u * MB) * KB);
|
|
ASSERT_EQ(2u * pm * MB, i::Heap::ComputeMaxSemiSpaceSize(1024u * MB) * KB);
|
|
ASSERT_EQ(5u * pm * MB, i::Heap::ComputeMaxSemiSpaceSize(2024u * MB) * KB);
|
|
ASSERT_EQ(8u * pm * MB, i::Heap::ComputeMaxSemiSpaceSize(4095u * MB) * KB);
|
|
}
|
|
|
|
TEST(Heap, OldGenerationSize) {
|
|
uint64_t configurations[][2] = {
|
|
{0, i::Heap::kMinOldGenerationSize},
|
|
{512, i::Heap::kMinOldGenerationSize},
|
|
{1 * i::GB, 256 * i::Heap::kPointerMultiplier},
|
|
{2 * static_cast<uint64_t>(i::GB), 512 * i::Heap::kPointerMultiplier},
|
|
{4 * static_cast<uint64_t>(i::GB), i::Heap::kMaxOldGenerationSize},
|
|
{8 * static_cast<uint64_t>(i::GB), i::Heap::kMaxOldGenerationSize}};
|
|
|
|
for (auto configuration : configurations) {
|
|
ASSERT_EQ(configuration[1],
|
|
static_cast<uint64_t>(
|
|
i::Heap::ComputeMaxOldGenerationSize(configuration[0])));
|
|
}
|
|
}
|
|
|
|
TEST_F(HeapTest, ASLR) {
|
|
#if V8_TARGET_ARCH_X64
|
|
#if V8_OS_MACOSX
|
|
Heap* heap = i_isolate()->heap();
|
|
std::set<void*> hints;
|
|
for (int i = 0; i < 1000; i++) {
|
|
hints.insert(heap->GetRandomMmapAddr());
|
|
}
|
|
if (hints.size() == 1) {
|
|
EXPECT_TRUE((*hints.begin()) == nullptr);
|
|
EXPECT_TRUE(base::OS::GetRandomMmapAddr() == nullptr);
|
|
} else {
|
|
// It is unlikely that 1000 random samples will collide to less then 500
|
|
// values.
|
|
EXPECT_GT(hints.size(), 500u);
|
|
const uintptr_t kRegionMask = 0xFFFFFFFFu;
|
|
void* first = *hints.begin();
|
|
for (void* hint : hints) {
|
|
uintptr_t diff = reinterpret_cast<uintptr_t>(first) ^
|
|
reinterpret_cast<uintptr_t>(hint);
|
|
EXPECT_LE(diff, kRegionMask);
|
|
}
|
|
}
|
|
#endif // V8_OS_MACOSX
|
|
#endif // V8_TARGET_ARCH_X64
|
|
}
|
|
|
|
} // namespace internal
|
|
} // namespace v8
|