commit b2f9936cab87a187f078187c22d9b29d4a188a62
author Mathieu Chartier <mathieuc@google.com> Wed Nov 20 17:26:00 2013 -0800
committer Mathieu Chartier <mathieuc@google.com> Thu Nov 21 12:02:28 2013 -0800
tree 601a1673d4c4aca428d69dff29a80c8f10cad214
parent dcc5c7598d38fcb555266c8618df720acea3b954

Add histogram for GC pause times.

Printed when you dump the GC performance info.

Bug: 10855285
Change-Id: I3bf7f958305f97c52cb31c03bdd6218c321575b9

runtime/base/histogram-inl.h

diff --git a/runtime/base/histogram-inl.h b/runtime/base/histogram-inl.h
index 4cd68cd..7c09999 100644
--- a/runtime/base/histogram-inl.h
+++ b/runtime/base/histogram-inl.h
@@ -178,7 +178,8 @@
   os << FormatDuration(Max() * kAdjust, unit) << "\n";
 }
 
-template <class Value> inline void Histogram<Value>::CreateHistogram(CumulativeData* out_data) {
+template <class Value>
+inline void Histogram<Value>::CreateHistogram(CumulativeData* out_data) const {
   DCHECK_GT(sample_size_, 0ull);
   out_data->freq_.clear();
   out_data->perc_.clear();

runtime/base/histogram.h

diff --git a/runtime/base/histogram.h b/runtime/base/histogram.h
index d4eb1f4..4e5d29a 100644
--- a/runtime/base/histogram.h
+++ b/runtime/base/histogram.h
@@ -49,7 +49,7 @@
   // cumulative_freq[i] = sum(frequency[j] : 0 < j < i )
   // Accumulative summation of percentiles; which is the frequency / SampleSize
   // cumulative_perc[i] = sum(frequency[j] / SampleSize : 0 < j < i )
-  void CreateHistogram(CumulativeData* data);
+  void CreateHistogram(CumulativeData* data) const;
   // Reset the cumulative values, next time CreateHistogram is called it will recreate the cache.
   void Reset();
   double Mean() const;