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Issue 481443003:
Add UMA histograms for the inter-process TimeTicks skew. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src| Index: tools/metrics/histograms/histograms.xml |
| diff --git a/tools/metrics/histograms/histograms.xml b/tools/metrics/histograms/histograms.xml |
| index fb1a1d0bd2d615446f53471e964310647397cb38..87cf64f7ff6c2d3ed352401864df2872727899f4 100644 |
| --- a/tools/metrics/histograms/histograms.xml |
| +++ b/tools/metrics/histograms/histograms.xml |
| @@ -10182,6 +10182,30 @@ Therefore, the affected-histogram name has to have at least one dot in it. |
| </summary> |
| </histogram> |
| +<histogram name="InterProcessTimeTicks.BrowserAhead" units="milliseconds"> |
| + <owner>ppi@chromium.org</owner> |
| + <summary> |
| + Estimated additive skew between processes, recorded if the browser process |
|
pasko
2014/08/18 09:30:34
It is usually a good idea to mention _when_ the hi
|
| + is ahead (higher TimeTicks value) than the renderer process. |
| + </summary> |
| +</histogram> |
| + |
| +<histogram name="InterProcessTimeTicks.BrowserBehind" units="milliseconds"> |
| + <owner>ppi@chromium.org</owner> |
| + <summary> |
| + Estimated additive skew between processes, recorded if the browser process |
| + is behind (lower TimeTicks value) than the renderer process. |
| + </summary> |
| +</histogram> |
| + |
| +<histogram name="InterProcessTimeTicks.IsSkewAdditive"> |
|
Alexei Svitkine (slow)
2014/08/15 16:54:34
Nit: Specify an enum="Boolean" or a more specific
ppi
2014/08/18 09:29:05
Done.
|
| + <owner>ppi@chromium.org</owner> |
| + <summary> |
| + True iff the conversion from the browser process TimeTicks to renderer |
| + process TimeTicks is done by adding a constant, without scaling. |
| + </summary> |
| +</histogram> |
| + |
| <histogram name="interstitial.authority_invalid_time" units="milliseconds"> |
| <obsolete> |
| Removed on 8/1/13. |
| @@ -51452,6 +51476,15 @@ Therefore, the affected-histogram name has to have at least one dot in it. |
| <affected-histogram name="PLT.PT_StartToFinish"/> |
| </histogram_suffixes> |
| +<histogram_suffixes name="InterProcessTimeTicksConversionType"> |
| + <owner>ppi@chromium.org</owner> |
| + <suffix name="BrowserToRenderer"/> |
| + <suffix name="RendererToBrowser"/> |
| + <affected-histogram name="InterProcessTimeTicks.BrowserAhead"/> |
| + <affected-histogram name="InterProcessTimeTicks.BrowserBehind"/> |
| + <affected-histogram name="InterProcessTimeTicks.IsSkewAdditive"/> |
| +</histogram_suffixes> |
| + |
| <histogram_suffixes name="Interval" separator="_"> |
| <suffix name="Interval" label="Interval between two consecutive connects is"/> |
| <affected-histogram name="Net.TCP_Connection_Latency"/> |
