diff options
Diffstat (limited to 'deps/v8/src/counters.cc')
| -rw-r--r-- | deps/v8/src/counters.cc | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/deps/v8/src/counters.cc b/deps/v8/src/counters.cc index 8cae329f52..6972011e5f 100644 --- a/deps/v8/src/counters.cc +++ b/deps/v8/src/counters.cc @@ -79,8 +79,25 @@ Counters::Counters(Isolate* 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 @@ -173,7 +190,7 @@ void Counters::ResetHistograms() { #undef HP #define HM(name, caption) name##_.Reset(); - HISTOGRAM_MEMORY_LIST(HM) + HISTOGRAM_LEGACY_MEMORY_LIST(HM) #undef HM } |