Index: content/renderer/render_thread_impl.cc |
diff --git a/content/renderer/render_thread_impl.cc b/content/renderer/render_thread_impl.cc |
index 637cc8be392f955524b04f83f44d73bb1c9eeea3..2f67ce3f77cfd78015a6b498fc67274f5e66283c 100644 |
--- a/content/renderer/render_thread_impl.cc |
+++ b/content/renderer/render_thread_impl.cc |
@@ -2234,7 +2234,26 @@ void RenderThreadImpl::OnMemoryStateChange(base::MemoryState state) { |
} |
} |
+void RenderThreadImpl::RecordPurgeMemory(RendererMemoryMetrics before) { |
kinuko
2017/03/28 08:07:00
nit: please move this after OnPurgeMemory() (to ma
bashi
2017/03/28 09:37:17
Done.
|
+ RendererMemoryMetrics after; |
+ GetRendererMemoryMetrics(&after); |
+ int64_t mbytes = static_cast<int64_t>(before.total_allocated_mb) - |
+ static_cast<int64_t>(after.total_allocated_mb); |
+ if (mbytes < 0) |
+ mbytes = 0; |
+ UMA_HISTOGRAM_MEMORY_LARGE_MB("Memory.Experimental.Renderer.PurgedMemory", |
+ mbytes); |
+} |
+ |
void RenderThreadImpl::OnPurgeMemory() { |
+ RendererMemoryMetrics metrics; |
+ GetRendererMemoryMetrics(&metrics); |
+ GetRendererScheduler()->DefaultTaskRunner()->PostDelayedTask( |
+ FROM_HERE, |
+ base::Bind(&RenderThreadImpl::RecordPurgeMemory, base::Unretained(this), |
+ std::move(metrics)), |
+ base::TimeDelta::FromSeconds(2)); |
kinuko
2017/03/28 08:07:00
nit: Would be nice to have a short note about why
bashi
2017/03/28 09:37:17
Done.
|
+ |
OnTrimMemoryImmediately(); |
ReleaseFreeMemory(); |
ClearMemory(); |