| // Copyright 2012 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 "src/counters.h" |
| |
| #include "src/base/platform/platform.h" |
| #include "src/isolate.h" |
| #include "src/log-inl.h" |
| |
| namespace v8 { |
| namespace internal { |
| |
| StatsTable::StatsTable() |
| : lookup_function_(NULL), |
| create_histogram_function_(NULL), |
| add_histogram_sample_function_(NULL) {} |
| |
| |
| int* StatsCounter::FindLocationInStatsTable() const { |
| return isolate_->stats_table()->FindLocation(name_); |
| } |
| |
| |
| void Histogram::AddSample(int sample) { |
| if (Enabled()) { |
| isolate()->stats_table()->AddHistogramSample(histogram_, sample); |
| } |
| } |
| |
| void* Histogram::CreateHistogram() const { |
| return isolate()->stats_table()-> |
| CreateHistogram(name_, min_, max_, num_buckets_); |
| } |
| |
| |
| // Start the timer. |
| void HistogramTimer::Start() { |
| if (Enabled()) { |
| timer_.Start(); |
| } |
| Logger::CallEventLogger(isolate(), name(), Logger::START, true); |
| } |
| |
| |
| // Stop the timer and record the results. |
| void HistogramTimer::Stop() { |
| if (Enabled()) { |
| int64_t sample = resolution_ == MICROSECOND |
| ? timer_.Elapsed().InMicroseconds() |
| : timer_.Elapsed().InMilliseconds(); |
| // Compute the delta between start and stop, in microseconds. |
| AddSample(static_cast<int>(sample)); |
| timer_.Stop(); |
| } |
| Logger::CallEventLogger(isolate(), name(), Logger::END, true); |
| } |
| |
| |
| Counters::Counters(Isolate* isolate) { |
| #define HR(name, caption, min, max, num_buckets) \ |
| name##_ = Histogram(#caption, min, max, num_buckets, isolate); |
| HISTOGRAM_RANGE_LIST(HR) |
| #undef HR |
| |
| #define HT(name, caption, max, res) \ |
| name##_ = HistogramTimer(#caption, 0, max, HistogramTimer::res, 50, isolate); |
| HISTOGRAM_TIMER_LIST(HT) |
| #undef HT |
| |
| #define AHT(name, caption) \ |
| name##_ = AggregatableHistogramTimer(#caption, 0, 10000000, 50, isolate); |
| AGGREGATABLE_HISTOGRAM_TIMER_LIST(AHT) |
| #undef AHT |
| |
| #define HP(name, caption) \ |
| name##_ = Histogram(#caption, 0, 101, 100, isolate); |
| HISTOGRAM_PERCENTAGE_LIST(HP) |
| #undef HP |
| |
| |
| // Exponential histogram assigns bucket limits to points |
| // p[1], p[2], ... p[n] such that p[i+1] / p[i] = constant. |
| // The constant factor is equal to the n-th root of (high / low), |
| // where the n is the number of buckets, the low is the lower limit, |
| // the high is the upper limit. |
| // For n = 50, low = 1000, high = 500000: the factor = 1.13. |
| #define HM(name, caption) \ |
| name##_ = Histogram(#caption, 1000, 500000, 50, isolate); |
| HISTOGRAM_LEGACY_MEMORY_LIST(HM) |
| #undef HM |
| // For n = 100, low = 4000, high = 2000000: the factor = 1.06. |
| #define HM(name, caption) \ |
| name##_ = Histogram(#caption, 4000, 2000000, 100, isolate); |
| HISTOGRAM_MEMORY_LIST(HM) |
| #undef HM |
| |
| #define HM(name, caption) \ |
| aggregated_##name##_ = AggregatedMemoryHistogram<Histogram>(&name##_); |
| HISTOGRAM_MEMORY_LIST(HM) |
| #undef HM |
| |
| #define SC(name, caption) \ |
| name##_ = StatsCounter(isolate, "c:" #caption); |
| |
| STATS_COUNTER_LIST_1(SC) |
| STATS_COUNTER_LIST_2(SC) |
| #undef SC |
| |
| #define SC(name) \ |
| count_of_##name##_ = StatsCounter(isolate, "c:" "V8.CountOf_" #name); \ |
| size_of_##name##_ = StatsCounter(isolate, "c:" "V8.SizeOf_" #name); |
| INSTANCE_TYPE_LIST(SC) |
| #undef SC |
| |
| #define SC(name) \ |
| count_of_CODE_TYPE_##name##_ = \ |
| StatsCounter(isolate, "c:" "V8.CountOf_CODE_TYPE-" #name); \ |
| size_of_CODE_TYPE_##name##_ = \ |
| StatsCounter(isolate, "c:" "V8.SizeOf_CODE_TYPE-" #name); |
| CODE_KIND_LIST(SC) |
| #undef SC |
| |
| #define SC(name) \ |
| count_of_FIXED_ARRAY_##name##_ = \ |
| StatsCounter(isolate, "c:" "V8.CountOf_FIXED_ARRAY-" #name); \ |
| size_of_FIXED_ARRAY_##name##_ = \ |
| StatsCounter(isolate, "c:" "V8.SizeOf_FIXED_ARRAY-" #name); |
| FIXED_ARRAY_SUB_INSTANCE_TYPE_LIST(SC) |
| #undef SC |
| |
| #define SC(name) \ |
| count_of_CODE_AGE_##name##_ = \ |
| StatsCounter(isolate, "c:" "V8.CountOf_CODE_AGE-" #name); \ |
| size_of_CODE_AGE_##name##_ = \ |
| StatsCounter(isolate, "c:" "V8.SizeOf_CODE_AGE-" #name); |
| CODE_AGE_LIST_COMPLETE(SC) |
| #undef SC |
| } |
| |
| |
| void Counters::ResetCounters() { |
| #define SC(name, caption) name##_.Reset(); |
| STATS_COUNTER_LIST_1(SC) |
| STATS_COUNTER_LIST_2(SC) |
| #undef SC |
| |
| #define SC(name) \ |
| count_of_##name##_.Reset(); \ |
| size_of_##name##_.Reset(); |
| INSTANCE_TYPE_LIST(SC) |
| #undef SC |
| |
| #define SC(name) \ |
| count_of_CODE_TYPE_##name##_.Reset(); \ |
| size_of_CODE_TYPE_##name##_.Reset(); |
| CODE_KIND_LIST(SC) |
| #undef SC |
| |
| #define SC(name) \ |
| count_of_FIXED_ARRAY_##name##_.Reset(); \ |
| size_of_FIXED_ARRAY_##name##_.Reset(); |
| FIXED_ARRAY_SUB_INSTANCE_TYPE_LIST(SC) |
| #undef SC |
| |
| #define SC(name) \ |
| count_of_CODE_AGE_##name##_.Reset(); \ |
| size_of_CODE_AGE_##name##_.Reset(); |
| CODE_AGE_LIST_COMPLETE(SC) |
| #undef SC |
| } |
| |
| |
| void Counters::ResetHistograms() { |
| #define HR(name, caption, min, max, num_buckets) name##_.Reset(); |
| HISTOGRAM_RANGE_LIST(HR) |
| #undef HR |
| |
| #define HT(name, caption, max, res) name##_.Reset(); |
| HISTOGRAM_TIMER_LIST(HT) |
| #undef HT |
| |
| #define AHT(name, caption) name##_.Reset(); |
| AGGREGATABLE_HISTOGRAM_TIMER_LIST(AHT) |
| #undef AHT |
| |
| #define HP(name, caption) name##_.Reset(); |
| HISTOGRAM_PERCENTAGE_LIST(HP) |
| #undef HP |
| |
| #define HM(name, caption) name##_.Reset(); |
| HISTOGRAM_LEGACY_MEMORY_LIST(HM) |
| #undef HM |
| } |
| |
| } // namespace internal |
| } // namespace v8 |