diff options
Diffstat (limited to 'chromium/v8/src/counters.h')
| -rw-r--r-- | chromium/v8/src/counters.h | 437 |
1 files changed, 409 insertions, 28 deletions
diff --git a/chromium/v8/src/counters.h b/chromium/v8/src/counters.h index 821c25f8cec..a7d00dcc80f 100644 --- a/chromium/v8/src/counters.h +++ b/chromium/v8/src/counters.h @@ -1,35 +1,15 @@ // Copyright 2012 the V8 project authors. All rights reserved. -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: -// -// * Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// * Redistributions in binary form must reproduce the above -// copyright notice, this list of conditions and the following -// disclaimer in the documentation and/or other materials provided -// with the distribution. -// * Neither the name of Google Inc. nor the names of its -// contributors may be used to endorse or promote products derived -// from this software without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. #ifndef V8_COUNTERS_H_ #define V8_COUNTERS_H_ -#include "../include/v8.h" -#include "allocation.h" +#include "include/v8.h" +#include "src/allocation.h" +#include "src/globals.h" +#include "src/objects.h" +#include "src/platform/elapsed-timer.h" namespace v8 { namespace internal { @@ -163,6 +143,9 @@ class StatsCounter { return loc; } + // Reset the cached internal pointer. + void Reset() { lookup_done_ = false; } + protected: // Returns the cached address of this counter location. int* GetPtr() { @@ -285,11 +268,12 @@ class HistogramTimerScope BASE_EMBEDDED { } else { timer_->Start(); } + } #else : timer_(timer) { timer_->Start(); -#endif } +#endif ~HistogramTimerScope() { #ifdef DEBUG if (!skipped_timer_start_) { @@ -299,6 +283,7 @@ class HistogramTimerScope BASE_EMBEDDED { timer_->Stop(); #endif } + private: HistogramTimer* timer_; #ifdef DEBUG @@ -307,6 +292,402 @@ class HistogramTimerScope BASE_EMBEDDED { }; +#define HISTOGRAM_TIMER_LIST(HT) \ + /* Garbage collection timers. */ \ + HT(gc_compactor, V8.GCCompactor) \ + HT(gc_scavenger, V8.GCScavenger) \ + HT(gc_context, V8.GCContext) /* GC context cleanup time */ \ + /* Parsing timers. */ \ + HT(parse, V8.Parse) \ + HT(parse_lazy, V8.ParseLazy) \ + HT(pre_parse, V8.PreParse) \ + /* Total compilation times. */ \ + HT(compile, V8.Compile) \ + HT(compile_eval, V8.CompileEval) \ + HT(compile_lazy, V8.CompileLazy) + +#define HISTOGRAM_PERCENTAGE_LIST(HP) \ + /* Heap fragmentation. */ \ + HP(external_fragmentation_total, \ + V8.MemoryExternalFragmentationTotal) \ + HP(external_fragmentation_old_pointer_space, \ + V8.MemoryExternalFragmentationOldPointerSpace) \ + HP(external_fragmentation_old_data_space, \ + V8.MemoryExternalFragmentationOldDataSpace) \ + HP(external_fragmentation_code_space, \ + V8.MemoryExternalFragmentationCodeSpace) \ + HP(external_fragmentation_map_space, \ + V8.MemoryExternalFragmentationMapSpace) \ + HP(external_fragmentation_cell_space, \ + V8.MemoryExternalFragmentationCellSpace) \ + HP(external_fragmentation_property_cell_space, \ + V8.MemoryExternalFragmentationPropertyCellSpace) \ + HP(external_fragmentation_lo_space, \ + V8.MemoryExternalFragmentationLoSpace) \ + /* Percentages of heap committed to each space. */ \ + HP(heap_fraction_new_space, \ + V8.MemoryHeapFractionNewSpace) \ + HP(heap_fraction_old_pointer_space, \ + V8.MemoryHeapFractionOldPointerSpace) \ + HP(heap_fraction_old_data_space, \ + V8.MemoryHeapFractionOldDataSpace) \ + HP(heap_fraction_code_space, \ + V8.MemoryHeapFractionCodeSpace) \ + HP(heap_fraction_map_space, \ + V8.MemoryHeapFractionMapSpace) \ + HP(heap_fraction_cell_space, \ + V8.MemoryHeapFractionCellSpace) \ + HP(heap_fraction_property_cell_space, \ + V8.MemoryHeapFractionPropertyCellSpace) \ + HP(heap_fraction_lo_space, \ + V8.MemoryHeapFractionLoSpace) \ + /* Percentage of crankshafted codegen. */ \ + HP(codegen_fraction_crankshaft, \ + V8.CodegenFractionCrankshaft) \ + + +#define HISTOGRAM_MEMORY_LIST(HM) \ + HM(heap_sample_total_committed, V8.MemoryHeapSampleTotalCommitted) \ + HM(heap_sample_total_used, V8.MemoryHeapSampleTotalUsed) \ + HM(heap_sample_map_space_committed, \ + V8.MemoryHeapSampleMapSpaceCommitted) \ + HM(heap_sample_cell_space_committed, \ + V8.MemoryHeapSampleCellSpaceCommitted) \ + HM(heap_sample_property_cell_space_committed, \ + V8.MemoryHeapSamplePropertyCellSpaceCommitted) \ + HM(heap_sample_code_space_committed, \ + V8.MemoryHeapSampleCodeSpaceCommitted) \ + HM(heap_sample_maximum_committed, \ + V8.MemoryHeapSampleMaximumCommitted) \ + + +// WARNING: STATS_COUNTER_LIST_* is a very large macro that is causing MSVC +// Intellisense to crash. It was broken into two macros (each of length 40 +// lines) rather than one macro (of length about 80 lines) to work around +// this problem. Please avoid using recursive macros of this length when +// possible. +#define STATS_COUNTER_LIST_1(SC) \ + /* Global Handle Count*/ \ + SC(global_handles, V8.GlobalHandles) \ + /* OS Memory allocated */ \ + SC(memory_allocated, V8.OsMemoryAllocated) \ + SC(normalized_maps, V8.NormalizedMaps) \ + SC(props_to_dictionary, V8.ObjectPropertiesToDictionary) \ + SC(elements_to_dictionary, V8.ObjectElementsToDictionary) \ + SC(alive_after_last_gc, V8.AliveAfterLastGC) \ + SC(objs_since_last_young, V8.ObjsSinceLastYoung) \ + SC(objs_since_last_full, V8.ObjsSinceLastFull) \ + SC(string_table_capacity, V8.StringTableCapacity) \ + SC(number_of_symbols, V8.NumberOfSymbols) \ + SC(script_wrappers, V8.ScriptWrappers) \ + SC(call_initialize_stubs, V8.CallInitializeStubs) \ + SC(call_premonomorphic_stubs, V8.CallPreMonomorphicStubs) \ + SC(call_normal_stubs, V8.CallNormalStubs) \ + SC(call_megamorphic_stubs, V8.CallMegamorphicStubs) \ + SC(inlined_copied_elements, V8.InlinedCopiedElements) \ + SC(arguments_adaptors, V8.ArgumentsAdaptors) \ + SC(compilation_cache_hits, V8.CompilationCacheHits) \ + SC(compilation_cache_misses, V8.CompilationCacheMisses) \ + SC(string_ctor_calls, V8.StringConstructorCalls) \ + SC(string_ctor_conversions, V8.StringConstructorConversions) \ + SC(string_ctor_cached_number, V8.StringConstructorCachedNumber) \ + SC(string_ctor_string_value, V8.StringConstructorStringValue) \ + SC(string_ctor_gc_required, V8.StringConstructorGCRequired) \ + /* Amount of evaled source code. */ \ + SC(total_eval_size, V8.TotalEvalSize) \ + /* Amount of loaded source code. */ \ + SC(total_load_size, V8.TotalLoadSize) \ + /* Amount of parsed source code. */ \ + SC(total_parse_size, V8.TotalParseSize) \ + /* Amount of source code skipped over using preparsing. */ \ + SC(total_preparse_skipped, V8.TotalPreparseSkipped) \ + /* Number of symbol lookups skipped using preparsing */ \ + SC(total_preparse_symbols_skipped, V8.TotalPreparseSymbolSkipped) \ + /* Amount of compiled source code. */ \ + SC(total_compile_size, V8.TotalCompileSize) \ + /* Amount of source code compiled with the full codegen. */ \ + SC(total_full_codegen_source_size, V8.TotalFullCodegenSourceSize) \ + /* Number of contexts created from scratch. */ \ + SC(contexts_created_from_scratch, V8.ContextsCreatedFromScratch) \ + /* Number of contexts created by partial snapshot. */ \ + SC(contexts_created_by_snapshot, V8.ContextsCreatedBySnapshot) \ + /* Number of code objects found from pc. */ \ + SC(pc_to_code, V8.PcToCode) \ + SC(pc_to_code_cached, V8.PcToCodeCached) \ + /* The store-buffer implementation of the write barrier. */ \ + SC(store_buffer_compactions, V8.StoreBufferCompactions) \ + SC(store_buffer_overflows, V8.StoreBufferOverflows) + + +#define STATS_COUNTER_LIST_2(SC) \ + /* Number of code stubs. */ \ + SC(code_stubs, V8.CodeStubs) \ + /* Amount of stub code. */ \ + SC(total_stubs_code_size, V8.TotalStubsCodeSize) \ + /* Amount of (JS) compiled code. */ \ + SC(total_compiled_code_size, V8.TotalCompiledCodeSize) \ + SC(gc_compactor_caused_by_request, V8.GCCompactorCausedByRequest) \ + SC(gc_compactor_caused_by_promoted_data, \ + V8.GCCompactorCausedByPromotedData) \ + SC(gc_compactor_caused_by_oldspace_exhaustion, \ + V8.GCCompactorCausedByOldspaceExhaustion) \ + SC(gc_last_resort_from_js, V8.GCLastResortFromJS) \ + SC(gc_last_resort_from_handles, V8.GCLastResortFromHandles) \ + /* How is the generic keyed-load stub used? */ \ + SC(keyed_load_generic_smi, V8.KeyedLoadGenericSmi) \ + SC(keyed_load_generic_symbol, V8.KeyedLoadGenericSymbol) \ + SC(keyed_load_generic_lookup_cache, V8.KeyedLoadGenericLookupCache) \ + SC(keyed_load_generic_slow, V8.KeyedLoadGenericSlow) \ + SC(keyed_load_polymorphic_stubs, V8.KeyedLoadPolymorphicStubs) \ + SC(keyed_load_external_array_slow, V8.KeyedLoadExternalArraySlow) \ + /* How is the generic keyed-call stub used? */ \ + SC(keyed_call_generic_smi_fast, V8.KeyedCallGenericSmiFast) \ + SC(keyed_call_generic_smi_dict, V8.KeyedCallGenericSmiDict) \ + SC(keyed_call_generic_lookup_cache, V8.KeyedCallGenericLookupCache) \ + SC(keyed_call_generic_lookup_dict, V8.KeyedCallGenericLookupDict) \ + SC(keyed_call_generic_slow, V8.KeyedCallGenericSlow) \ + SC(keyed_call_generic_slow_load, V8.KeyedCallGenericSlowLoad) \ + SC(named_load_global_stub, V8.NamedLoadGlobalStub) \ + SC(named_store_global_inline, V8.NamedStoreGlobalInline) \ + SC(named_store_global_inline_miss, V8.NamedStoreGlobalInlineMiss) \ + SC(keyed_store_polymorphic_stubs, V8.KeyedStorePolymorphicStubs) \ + SC(keyed_store_external_array_slow, V8.KeyedStoreExternalArraySlow) \ + SC(store_normal_miss, V8.StoreNormalMiss) \ + SC(store_normal_hit, V8.StoreNormalHit) \ + SC(cow_arrays_created_stub, V8.COWArraysCreatedStub) \ + SC(cow_arrays_created_runtime, V8.COWArraysCreatedRuntime) \ + SC(cow_arrays_converted, V8.COWArraysConverted) \ + SC(call_miss, V8.CallMiss) \ + SC(keyed_call_miss, V8.KeyedCallMiss) \ + SC(load_miss, V8.LoadMiss) \ + SC(keyed_load_miss, V8.KeyedLoadMiss) \ + SC(call_const, V8.CallConst) \ + SC(call_const_fast_api, V8.CallConstFastApi) \ + SC(call_const_interceptor, V8.CallConstInterceptor) \ + SC(call_const_interceptor_fast_api, V8.CallConstInterceptorFastApi) \ + SC(call_global_inline, V8.CallGlobalInline) \ + SC(call_global_inline_miss, V8.CallGlobalInlineMiss) \ + SC(constructed_objects, V8.ConstructedObjects) \ + SC(constructed_objects_runtime, V8.ConstructedObjectsRuntime) \ + SC(negative_lookups, V8.NegativeLookups) \ + SC(negative_lookups_miss, V8.NegativeLookupsMiss) \ + SC(megamorphic_stub_cache_probes, V8.MegamorphicStubCacheProbes) \ + SC(megamorphic_stub_cache_misses, V8.MegamorphicStubCacheMisses) \ + SC(megamorphic_stub_cache_updates, V8.MegamorphicStubCacheUpdates) \ + SC(array_function_runtime, V8.ArrayFunctionRuntime) \ + SC(array_function_native, V8.ArrayFunctionNative) \ + SC(for_in, V8.ForIn) \ + SC(enum_cache_hits, V8.EnumCacheHits) \ + SC(enum_cache_misses, V8.EnumCacheMisses) \ + SC(zone_segment_bytes, V8.ZoneSegmentBytes) \ + SC(fast_new_closure_total, V8.FastNewClosureTotal) \ + SC(fast_new_closure_try_optimized, V8.FastNewClosureTryOptimized) \ + SC(fast_new_closure_install_optimized, V8.FastNewClosureInstallOptimized) \ + SC(string_add_runtime, V8.StringAddRuntime) \ + SC(string_add_native, V8.StringAddNative) \ + SC(string_add_runtime_ext_to_ascii, V8.StringAddRuntimeExtToAscii) \ + SC(sub_string_runtime, V8.SubStringRuntime) \ + SC(sub_string_native, V8.SubStringNative) \ + SC(string_add_make_two_char, V8.StringAddMakeTwoChar) \ + SC(string_compare_native, V8.StringCompareNative) \ + SC(string_compare_runtime, V8.StringCompareRuntime) \ + SC(regexp_entry_runtime, V8.RegExpEntryRuntime) \ + SC(regexp_entry_native, V8.RegExpEntryNative) \ + SC(number_to_string_native, V8.NumberToStringNative) \ + SC(number_to_string_runtime, V8.NumberToStringRuntime) \ + SC(math_acos, V8.MathAcos) \ + SC(math_asin, V8.MathAsin) \ + SC(math_atan, V8.MathAtan) \ + SC(math_atan2, V8.MathAtan2) \ + SC(math_exp, V8.MathExp) \ + SC(math_floor, V8.MathFloor) \ + SC(math_log, V8.MathLog) \ + SC(math_pow, V8.MathPow) \ + SC(math_round, V8.MathRound) \ + SC(math_sqrt, V8.MathSqrt) \ + SC(stack_interrupts, V8.StackInterrupts) \ + SC(runtime_profiler_ticks, V8.RuntimeProfilerTicks) \ + SC(bounds_checks_eliminated, V8.BoundsChecksEliminated) \ + SC(bounds_checks_hoisted, V8.BoundsChecksHoisted) \ + SC(soft_deopts_requested, V8.SoftDeoptsRequested) \ + SC(soft_deopts_inserted, V8.SoftDeoptsInserted) \ + SC(soft_deopts_executed, V8.SoftDeoptsExecuted) \ + /* Number of write barriers in generated code. */ \ + SC(write_barriers_dynamic, V8.WriteBarriersDynamic) \ + SC(write_barriers_static, V8.WriteBarriersStatic) \ + SC(new_space_bytes_available, V8.MemoryNewSpaceBytesAvailable) \ + SC(new_space_bytes_committed, V8.MemoryNewSpaceBytesCommitted) \ + SC(new_space_bytes_used, V8.MemoryNewSpaceBytesUsed) \ + SC(old_pointer_space_bytes_available, \ + V8.MemoryOldPointerSpaceBytesAvailable) \ + SC(old_pointer_space_bytes_committed, \ + V8.MemoryOldPointerSpaceBytesCommitted) \ + SC(old_pointer_space_bytes_used, V8.MemoryOldPointerSpaceBytesUsed) \ + SC(old_data_space_bytes_available, V8.MemoryOldDataSpaceBytesAvailable) \ + SC(old_data_space_bytes_committed, V8.MemoryOldDataSpaceBytesCommitted) \ + SC(old_data_space_bytes_used, V8.MemoryOldDataSpaceBytesUsed) \ + SC(code_space_bytes_available, V8.MemoryCodeSpaceBytesAvailable) \ + SC(code_space_bytes_committed, V8.MemoryCodeSpaceBytesCommitted) \ + SC(code_space_bytes_used, V8.MemoryCodeSpaceBytesUsed) \ + SC(map_space_bytes_available, V8.MemoryMapSpaceBytesAvailable) \ + SC(map_space_bytes_committed, V8.MemoryMapSpaceBytesCommitted) \ + SC(map_space_bytes_used, V8.MemoryMapSpaceBytesUsed) \ + SC(cell_space_bytes_available, V8.MemoryCellSpaceBytesAvailable) \ + SC(cell_space_bytes_committed, V8.MemoryCellSpaceBytesCommitted) \ + SC(cell_space_bytes_used, V8.MemoryCellSpaceBytesUsed) \ + SC(property_cell_space_bytes_available, \ + V8.MemoryPropertyCellSpaceBytesAvailable) \ + SC(property_cell_space_bytes_committed, \ + V8.MemoryPropertyCellSpaceBytesCommitted) \ + SC(property_cell_space_bytes_used, \ + V8.MemoryPropertyCellSpaceBytesUsed) \ + SC(lo_space_bytes_available, V8.MemoryLoSpaceBytesAvailable) \ + SC(lo_space_bytes_committed, V8.MemoryLoSpaceBytesCommitted) \ + SC(lo_space_bytes_used, V8.MemoryLoSpaceBytesUsed) + + +// This file contains all the v8 counters that are in use. +class Counters { + public: +#define HT(name, caption) \ + HistogramTimer* name() { return &name##_; } + HISTOGRAM_TIMER_LIST(HT) +#undef HT + +#define HP(name, caption) \ + Histogram* name() { return &name##_; } + HISTOGRAM_PERCENTAGE_LIST(HP) +#undef HP + +#define HM(name, caption) \ + Histogram* name() { return &name##_; } + HISTOGRAM_MEMORY_LIST(HM) +#undef HM + +#define SC(name, caption) \ + StatsCounter* name() { return &name##_; } + STATS_COUNTER_LIST_1(SC) + STATS_COUNTER_LIST_2(SC) +#undef SC + +#define SC(name) \ + StatsCounter* count_of_##name() { return &count_of_##name##_; } \ + StatsCounter* size_of_##name() { return &size_of_##name##_; } + INSTANCE_TYPE_LIST(SC) +#undef SC + +#define SC(name) \ + StatsCounter* count_of_CODE_TYPE_##name() \ + { return &count_of_CODE_TYPE_##name##_; } \ + StatsCounter* size_of_CODE_TYPE_##name() \ + { return &size_of_CODE_TYPE_##name##_; } + CODE_KIND_LIST(SC) +#undef SC + +#define SC(name) \ + StatsCounter* count_of_FIXED_ARRAY_##name() \ + { return &count_of_FIXED_ARRAY_##name##_; } \ + StatsCounter* size_of_FIXED_ARRAY_##name() \ + { return &size_of_FIXED_ARRAY_##name##_; } + FIXED_ARRAY_SUB_INSTANCE_TYPE_LIST(SC) +#undef SC + +#define SC(name) \ + StatsCounter* count_of_CODE_AGE_##name() \ + { return &count_of_CODE_AGE_##name##_; } \ + StatsCounter* size_of_CODE_AGE_##name() \ + { return &size_of_CODE_AGE_##name##_; } + CODE_AGE_LIST_COMPLETE(SC) +#undef SC + + enum Id { +#define RATE_ID(name, caption) k_##name, + HISTOGRAM_TIMER_LIST(RATE_ID) +#undef RATE_ID +#define PERCENTAGE_ID(name, caption) k_##name, + HISTOGRAM_PERCENTAGE_LIST(PERCENTAGE_ID) +#undef PERCENTAGE_ID +#define MEMORY_ID(name, caption) k_##name, + HISTOGRAM_MEMORY_LIST(MEMORY_ID) +#undef MEMORY_ID +#define COUNTER_ID(name, caption) k_##name, + STATS_COUNTER_LIST_1(COUNTER_ID) + STATS_COUNTER_LIST_2(COUNTER_ID) +#undef COUNTER_ID +#define COUNTER_ID(name) kCountOf##name, kSizeOf##name, + INSTANCE_TYPE_LIST(COUNTER_ID) +#undef COUNTER_ID +#define COUNTER_ID(name) kCountOfCODE_TYPE_##name, \ + kSizeOfCODE_TYPE_##name, + CODE_KIND_LIST(COUNTER_ID) +#undef COUNTER_ID +#define COUNTER_ID(name) kCountOfFIXED_ARRAY__##name, \ + kSizeOfFIXED_ARRAY__##name, + FIXED_ARRAY_SUB_INSTANCE_TYPE_LIST(COUNTER_ID) +#undef COUNTER_ID +#define COUNTER_ID(name) kCountOfCODE_AGE__##name, \ + kSizeOfCODE_AGE__##name, + CODE_AGE_LIST_COMPLETE(COUNTER_ID) +#undef COUNTER_ID + stats_counter_count + }; + + void ResetCounters(); + void ResetHistograms(); + + private: +#define HT(name, caption) \ + HistogramTimer name##_; + HISTOGRAM_TIMER_LIST(HT) +#undef HT + +#define HP(name, caption) \ + Histogram name##_; + HISTOGRAM_PERCENTAGE_LIST(HP) +#undef HP + +#define HM(name, caption) \ + Histogram name##_; + HISTOGRAM_MEMORY_LIST(HM) +#undef HM + +#define SC(name, caption) \ + StatsCounter name##_; + STATS_COUNTER_LIST_1(SC) + STATS_COUNTER_LIST_2(SC) +#undef SC + +#define SC(name) \ + StatsCounter size_of_##name##_; \ + StatsCounter count_of_##name##_; + INSTANCE_TYPE_LIST(SC) +#undef SC + +#define SC(name) \ + StatsCounter size_of_CODE_TYPE_##name##_; \ + StatsCounter count_of_CODE_TYPE_##name##_; + CODE_KIND_LIST(SC) +#undef SC + +#define SC(name) \ + StatsCounter size_of_FIXED_ARRAY_##name##_; \ + StatsCounter count_of_FIXED_ARRAY_##name##_; + FIXED_ARRAY_SUB_INSTANCE_TYPE_LIST(SC) +#undef SC + +#define SC(name) \ + StatsCounter size_of_CODE_AGE_##name##_; \ + StatsCounter count_of_CODE_AGE_##name##_; + CODE_AGE_LIST_COMPLETE(SC) +#undef SC + + friend class Isolate; + + explicit Counters(Isolate* isolate); + + DISALLOW_IMPLICIT_CONSTRUCTORS(Counters); +}; + } } // namespace v8::internal #endif // V8_COUNTERS_H_ |