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[counters] Make RuntimeCallStats aware of thread status

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RuntimeCallTimerScope can now be called with the optional flag
kThreadSpecific, which chooses the appropriate RuntimeCounterId given
whether the RuntimeCallStats object is for the main isolate thread or a
worker thread.

While this doesn't change any existing timers over to use this flag it
does add checks that in the default case that any thread-specific
counters are the correct one given the thread status.

Bug: v8:10006
Change-Id: Idb545714284bcd2e2fdca991918ddf976dcbdf70
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1928863
Commit-Queue: Dan Elphick <delphick@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#65125}
This commit is contained in:
Dan Elphick 2019-11-22 17:59:31 +00:00 committed by Commit Bot
parent f6f0646d2d
commit 90c6444292
2 changed files with 113 additions and 38 deletions
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44
src/logging/counters.cc
View File

@ -125,7 +125,7 @@ Counters::Counters(Isolate* isolate)
STATS_COUNTER_TS_LIST(SC)
#undef SC
// clang format on
runtime_call_stats_(),
runtime_call_stats_(RuntimeCallStats::kMainIsolateThread),
worker_thread_runtime_call_stats_() {
static const struct {
Histogram Counters::*member;
@ -426,7 +426,8 @@ void RuntimeCallTimer::Snapshot() {
Resume(now);
}
RuntimeCallStats::RuntimeCallStats() : in_use_(false) {
RuntimeCallStats::RuntimeCallStats(ThreadType thread_type)
: in_use_(false), thread_type_(thread_type) {
static const char* const kNames[] = {
#define CALL_BUILTIN_COUNTER(name) "GC_" #name,
FOR_EACH_GC_COUNTER(CALL_BUILTIN_COUNTER) //
@ -446,12 +447,47 @@ RuntimeCallStats::RuntimeCallStats() : in_use_(false) {
#define CALL_BUILTIN_COUNTER(name) #name,
FOR_EACH_HANDLER_COUNTER(CALL_BUILTIN_COUNTER) //
#undef CALL_BUILTIN_COUNTER
#define THREAD_SPECIFIC_COUNTER(name) #name,
FOR_EACH_THREAD_SPECIFIC_COUNTER(THREAD_SPECIFIC_COUNTER) //
#undef THREAD_SPECIFIC_COUNTER
};
for (int i = 0; i < kNumberOfCounters; i++) {
this->counters_[i] = RuntimeCallCounter(kNames[i]);
}
}
namespace {
constexpr RuntimeCallCounterId FirstCounter(RuntimeCallCounterId first, ...) {
return first;
}
#define THREAD_SPECIFIC_COUNTER(name) k##name,
constexpr RuntimeCallCounterId kFirstThreadVariantCounter =
FirstCounter(FOR_EACH_THREAD_SPECIFIC_COUNTER(THREAD_SPECIFIC_COUNTER) 0);
#undef THREAD_SPECIFIC_COUNTER
#define THREAD_SPECIFIC_COUNTER(name) +1
constexpr int kThreadVariantCounterCount =
0 FOR_EACH_THREAD_SPECIFIC_COUNTER(THREAD_SPECIFIC_COUNTER);
#undef THREAD_SPECIFIC_COUNTER
constexpr auto kLastThreadVariantCounter = static_cast<RuntimeCallCounterId>(
kFirstThreadVariantCounter + kThreadVariantCounterCount - 1);
} // namespace
bool RuntimeCallStats::HasThreadSpecificCounterVariants(
RuntimeCallCounterId id) {
// Check that it's in the range of the thread-specific variant counters and
// also that it's one of the background counters.
return id >= kFirstThreadVariantCounter && id <= kLastThreadVariantCounter;
}
bool RuntimeCallStats::IsBackgroundThreadSpecificVariant(
RuntimeCallCounterId id) {
return HasThreadSpecificCounterVariants(id) &&
(id - kFirstThreadVariantCounter) % 2 == 1;
}
void RuntimeCallStats::Enter(RuntimeCallTimer* timer,
RuntimeCallCounterId counter_id) {
DCHECK(IsCalledOnTheSameThread());
@ -536,7 +572,7 @@ void RuntimeCallStats::Dump(v8::tracing::TracedValue* value) {
in_use_ = false;
}
WorkerThreadRuntimeCallStats::WorkerThreadRuntimeCallStats() {}
WorkerThreadRuntimeCallStats::WorkerThreadRuntimeCallStats() = default;
WorkerThreadRuntimeCallStats::~WorkerThreadRuntimeCallStats() {
if (tls_key_) base::Thread::DeleteThreadLocalKey(*tls_key_);
@ -551,7 +587,7 @@ base::Thread::LocalStorageKey WorkerThreadRuntimeCallStats::GetKey() {
RuntimeCallStats* WorkerThreadRuntimeCallStats::NewTable() {
DCHECK(TracingFlags::is_runtime_stats_enabled());
std::unique_ptr<RuntimeCallStats> new_table =
std::make_unique<RuntimeCallStats>();
std::make_unique<RuntimeCallStats>(RuntimeCallStats::kWorkerThread);
RuntimeCallStats* result = new_table.get();
base::MutexGuard lock(&mutex_);

107
src/logging/counters.h
View File

@ -893,6 +893,25 @@ class RuntimeCallTimer final {
V(WeakMap_New) \
V(WeakMap_Set)
#define ADD_THREAD_SPECIFIC_COUNTER(V, Prefix, Suffix) \
V(Prefix##Suffix) \
V(Prefix##Background##Suffix)
#define FOR_EACH_THREAD_SPECIFIC_COUNTER(V) \
ADD_THREAD_SPECIFIC_COUNTER(V, Compile, Analyse) \
ADD_THREAD_SPECIFIC_COUNTER(V, Compile, Eval) \
ADD_THREAD_SPECIFIC_COUNTER(V, Compile, Function) \
ADD_THREAD_SPECIFIC_COUNTER(V, Compile, Ignition) \
ADD_THREAD_SPECIFIC_COUNTER(V, Compile, RewriteReturnResult) \
ADD_THREAD_SPECIFIC_COUNTER(V, Compile, ScopeAnalysis) \
ADD_THREAD_SPECIFIC_COUNTER(V, Compile, Script) \
ADD_THREAD_SPECIFIC_COUNTER(V, Optimize, AssembleCode) \
ADD_THREAD_SPECIFIC_COUNTER(V, Parse, ArrowFunctionLiteral) \
ADD_THREAD_SPECIFIC_COUNTER(V, Parse, FunctionLiteral) \
ADD_THREAD_SPECIFIC_COUNTER(V, Parse, Program) \
ADD_THREAD_SPECIFIC_COUNTER(V, PreParse, ArrowFunctionLiteral) \
ADD_THREAD_SPECIFIC_COUNTER(V, PreParse, WithVariableResolution)
#define FOR_EACH_MANUAL_COUNTER(V) \
V(AccessorGetterCallback) \
V(AccessorSetterCallback) \
@ -901,28 +920,14 @@ class RuntimeCallTimer final {
V(BoundFunctionLengthGetter) \
V(BoundFunctionNameGetter) \
V(CodeGenerationFromStringsCallbacks) \
V(CompileAnalyse) \
V(CompileBackgroundAnalyse) \
V(CompileBackgroundCompileTask) \
V(CompileBackgroundEval) \
V(CompileBackgroundFunction) \
V(CompileBackgroundIgnition) \
V(CompileBackgroundRewriteReturnResult) \
V(CompileBackgroundScopeAnalysis) \
V(CompileBackgroundScript) \
V(CompileCollectSourcePositions) \
V(CompileDeserialize) \
V(CompileEnqueueOnDispatcher) \
V(CompileEval) \
V(CompileFinalizeBackgroundCompileTask) \
V(CompileFinishNowOnDispatcher) \
V(CompileFunction) \
V(CompileGetFromOptimizedCodeMap) \
V(CompileIgnition) \
V(CompileIgnitionFinalization) \
V(CompileRewriteReturnResult) \
V(CompileScopeAnalysis) \
V(CompileScript) \
V(CompileSerialize) \
V(CompileWaitForDispatcher) \
V(DeoptimizeCode) \
@ -964,18 +969,8 @@ class RuntimeCallTimer final {
V(Object_DeleteProperty) \
V(ObjectVerify) \
V(OptimizeCode) \
V(ParseArrowFunctionLiteral) \
V(ParseBackgroundArrowFunctionLiteral) \
V(ParseBackgroundFunctionLiteral) \
V(ParseBackgroundProgram) \
V(ParseEval) \
V(ParseFunction) \
V(ParseFunctionLiteral) \
V(ParseProgram) \
V(PreParseArrowFunctionLiteral) \
V(PreParseBackgroundArrowFunctionLiteral) \
V(PreParseBackgroundWithVariableResolution) \
V(PreParseWithVariableResolution) \
V(PropertyCallback) \
V(PrototypeMap_TransitionToAccessorProperty) \
V(PrototypeMap_TransitionToDataProperty) \
@ -1046,29 +1041,34 @@ class RuntimeCallTimer final {
enum RuntimeCallCounterId {
#define CALL_RUNTIME_COUNTER(name) kGC_##name,
FOR_EACH_GC_COUNTER(CALL_RUNTIME_COUNTER)
FOR_EACH_GC_COUNTER(CALL_RUNTIME_COUNTER) //
#undef CALL_RUNTIME_COUNTER
#define CALL_RUNTIME_COUNTER(name) k##name,
FOR_EACH_MANUAL_COUNTER(CALL_RUNTIME_COUNTER)
FOR_EACH_MANUAL_COUNTER(CALL_RUNTIME_COUNTER) //
#undef CALL_RUNTIME_COUNTER
#define CALL_RUNTIME_COUNTER(name, nargs, ressize) kRuntime_##name,
FOR_EACH_INTRINSIC(CALL_RUNTIME_COUNTER)
FOR_EACH_INTRINSIC(CALL_RUNTIME_COUNTER) //
#undef CALL_RUNTIME_COUNTER
#define CALL_BUILTIN_COUNTER(name) kBuiltin_##name,
BUILTIN_LIST_C(CALL_BUILTIN_COUNTER)
BUILTIN_LIST_C(CALL_BUILTIN_COUNTER) //
#undef CALL_BUILTIN_COUNTER
#define CALL_BUILTIN_COUNTER(name) kAPI_##name,
FOR_EACH_API_COUNTER(CALL_BUILTIN_COUNTER)
FOR_EACH_API_COUNTER(CALL_BUILTIN_COUNTER) //
#undef CALL_BUILTIN_COUNTER
#define CALL_BUILTIN_COUNTER(name) kHandler_##name,
FOR_EACH_HANDLER_COUNTER(CALL_BUILTIN_COUNTER)
FOR_EACH_HANDLER_COUNTER(CALL_BUILTIN_COUNTER) //
#undef CALL_BUILTIN_COUNTER
kNumberOfCounters
#define THREAD_SPECIFIC_COUNTER(name) k##name,
FOR_EACH_THREAD_SPECIFIC_COUNTER(THREAD_SPECIFIC_COUNTER) //
#undef THREAD_SPECIFIC_COUNTER
kNumberOfCounters,
};
class RuntimeCallStats final {
public:
V8_EXPORT_PRIVATE RuntimeCallStats();
enum ThreadType { kMainIsolateThread, kWorkerThread };
explicit V8_EXPORT_PRIVATE RuntimeCallStats(ThreadType thread_type);
// Starting measuring the time for a function. This will establish the
// connection to the parent counter for properly calculating the own times.
@ -1098,6 +1098,32 @@ class RuntimeCallStats final {
bool InUse() { return in_use_; }
bool IsCalledOnTheSameThread();
V8_EXPORT_PRIVATE bool IsBackgroundThreadSpecificVariant(
RuntimeCallCounterId id);
V8_EXPORT_PRIVATE bool HasThreadSpecificCounterVariants(
RuntimeCallCounterId id);
// This should only be called for counters with a dual Background variant. If
// on the main thread, this just returns the counter. If on a worker thread,
// it returns Background variant of the counter.
RuntimeCallCounterId CounterIdForThread(RuntimeCallCounterId id) {
DCHECK(HasThreadSpecificCounterVariants(id));
// All thread specific counters are laid out with the main thread variant
// first followed by the background variant.
return thread_type_ == kWorkerThread
? static_cast<RuntimeCallCounterId>(id + 1)
: id;
}
bool IsCounterAppropriateForThread(RuntimeCallCounterId id) {
// TODO(delphick): We should add background-only counters and ensure that
// all counters (not just the thread-specific variants) are only invoked on
// the correct thread.
if (!HasThreadSpecificCounterVariants(id)) return true;
return IsBackgroundThreadSpecificVariant(id) ==
(thread_type_ == kWorkerThread);
}
static const int kNumberOfCounters =
static_cast<int>(RuntimeCallCounterId::kNumberOfCounters);
RuntimeCallCounter* GetCounter(RuntimeCallCounterId counter_id) {
@ -1114,6 +1140,7 @@ class RuntimeCallStats final {
base::AtomicValue<RuntimeCallCounter*> current_counter_;
// Used to track nested tracing scopes.
bool in_use_;
ThreadType thread_type_;
ThreadId thread_id_;
RuntimeCallCounter counters_[kNumberOfCounters];
};
@ -1171,14 +1198,26 @@ class WorkerThreadRuntimeCallStatsScope final {
// the time of C++ scope.
class RuntimeCallTimerScope {
public:
// If kExact is chosen the counter will be use as given. With kThreadSpecific,
// if the RuntimeCallStats was created for a worker thread, then the
// background specific version of the counter will be used instead.
enum CounterMode { kExact, kThreadSpecific };
inline RuntimeCallTimerScope(Isolate* isolate,
RuntimeCallCounterId counter_id);
inline RuntimeCallTimerScope(RuntimeCallStats* stats,
RuntimeCallCounterId counter_id) {
RuntimeCallCounterId counter_id,
CounterMode mode = CounterMode::kExact) {
if (V8_LIKELY(!TracingFlags::is_runtime_stats_enabled() ||
stats == nullptr))
stats == nullptr)) {
return;
}
stats_ = stats;
if (mode == CounterMode::kThreadSpecific) {
counter_id = stats->CounterIdForThread(counter_id);
}
DCHECK(stats->IsCounterAppropriateForThread(counter_id));
stats_->Enter(&timer_, counter_id);
}