Index: content/renderer/render_thread_impl.cc |
diff --git a/content/renderer/render_thread_impl.cc b/content/renderer/render_thread_impl.cc |
index fc83bd7fb946a937142e210324832a6e540a82d2..6a4641f6ace3b003492dd01c04e98586515ce429 100644 |
--- a/content/renderer/render_thread_impl.cc |
+++ b/content/renderer/render_thread_impl.cc |
@@ -2230,7 +2230,26 @@ void RenderThreadImpl::OnMemoryStateChange(base::MemoryState state) { |
} |
} |
+void RenderThreadImpl::RecordPurgeMemory(RendererMemoryMetrics before) { |
+ 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) |
haraken
2017/03/24 11:55:39
Maybe we want to count this case in some way too?
bashi
2017/03/28 03:15:31
Done.
|
+ return; |
+ 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)); |
haraken
2017/03/24 11:55:39
I guess tasak@ was using 15 seconds or something.
bashi
2017/03/28 03:15:31
I think 2 seconds is enough and 15 sec seems too l
|
+ |
OnTrimMemoryImmediately(); |
ReleaseFreeMemory(); |
ClearMemory(); |