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| author | jamesr@chromium.org <jamesr@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2013-10-03 19:12:52 +0000 |
|---|---|---|
| committer | jamesr@chromium.org <jamesr@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2013-10-03 19:12:52 +0000 |
| commit | e2bc92bfd8863ee4d9293d6711a516dade843742 (patch) | |
| tree | a3f84fd370c949efc42e4ce897dde2f2fe63665a | |
| parent | bf124375ab566296664d22bbda10ae20988f0ad0 (diff) | |
| download | chromium_src-e2bc92bfd8863ee4d9293d6711a516dade843742.zip chromium_src-e2bc92bfd8863ee4d9293d6711a516dade843742.tar.gz chromium_src-e2bc92bfd8863ee4d9293d6711a516dade843742.tar.bz2 | |
Histogram display refresh rate on windows
This reports every time wequery the display mode, which is quite frequent,
but since the display rate can change over time this will have the effect of
weighting each refresh rate by overall usage instead of by pure user count.
BUG=262437 (this doesn't fix the bug, but makes it easier to analyze the effects)
R=isherman@chromium.org, jbauman@chromium.org, kbr@chromium.org
Review URL: https://codereview.chromium.org/25705005
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@226811 0039d316-1c4b-4281-b951-d872f2087c98
| -rw-r--r-- | tools/metrics/histograms/histograms.xml | 7 | ||||
| -rw-r--r-- | ui/surface/accelerated_surface_win.cc | 4 |
2 files changed, 11 insertions, 0 deletions
diff --git a/tools/metrics/histograms/histograms.xml b/tools/metrics/histograms/histograms.xml index 880dfb6..b6258d6 100644 --- a/tools/metrics/histograms/histograms.xml +++ b/tools/metrics/histograms/histograms.xml @@ -4874,6 +4874,13 @@ other types of suffix sets. <summary>Events in Google Now component extension.</summary> </histogram> +<histogram name="GPU.AcceleratedSurfaceRefreshRate" units="hz"> + <summary> + Refresh rate of the display in Hz. This is recorded every time we present a + frame. + </summary> +</histogram> + <histogram name="History.DeleteFTSIndexDatabases"> <summary> Count of "History Index *" databases deleted. These databases diff --git a/ui/surface/accelerated_surface_win.cc b/ui/surface/accelerated_surface_win.cc index 15d78c0..9f184e3 100644 --- a/ui/surface/accelerated_surface_win.cc +++ b/ui/surface/accelerated_surface_win.cc @@ -14,6 +14,7 @@ #include "base/debug/trace_event.h" #include "base/files/file_path.h" #include "base/lazy_instance.h" +#include "base/metrics/histogram.h" #include "base/memory/scoped_ptr.h" #include "base/message_loop/message_loop_proxy.h" #include "base/scoped_native_library.h" @@ -864,6 +865,9 @@ void AcceleratedPresenter::DoPresentAndAcknowledge( return; } + UMA_HISTOGRAM_CUSTOM_COUNTS("GPU.AcceleratedSurfaceRefreshRate", + display_mode.RefreshRate, 0, 121, 122); + // I can't figure out how to determine how many scanlines are in the // vertical blank so clamp it such that scanline / height <= 1. int clamped_scanline = std::min(raster_status.ScanLine, display_mode.Height); |