base/metrics/histogram_samples.cc - Issue 23602005: Use nobarrier atomics for lossy counters in base::HistogramSamples and base::SampleVector

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Unified Diff: base/metrics/histogram_samples.cc

Issue 23602005: Use nobarrier atomics for lossy counters in base::HistogramSamples and base::SampleVector (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/

Patch Set: Created 7 years, 4 months ago

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Index: base/metrics/histogram_samples.cc

===================================================================

--- base/metrics/histogram_samples.cc (revision 219973)

+++ base/metrics/histogram_samples.cc (working copy)

@@ -113,7 +113,8 @@

}

void HistogramSamples::IncreaseRedundantCount(HistogramBase::Count diff) {

- redundant_count_ += diff;

+ base::subtle::NoBarrier_Store(&redundant_count_,

+ base::subtle::NoBarrier_Load(&redundant_count_) + diff);

}

SampleCountIterator::~SampleCountIterator() {}

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