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| author | rockot <rockot@chromium.org> | 2016-03-10 22:17:34 -0800 |
|---|---|---|
| committer | Commit bot <commit-bot@chromium.org> | 2016-03-11 06:20:10 +0000 |
| commit | c7b3190c0ecd5b88688aa5e55d3085f0fbd40e11 (patch) | |
| tree | 085eeb55738f19e6970d9cfad37f4df31d0199f0 /tools/metrics | |
| parent | 71a42d8ea237f636bc39b6048e7a228ee260e9f9 (diff) | |
| download | chromium_src-c7b3190c0ecd5b88688aa5e55d3085f0fbd40e11.zip chromium_src-c7b3190c0ecd5b88688aa5e55d3085f0fbd40e11.tar.gz chromium_src-c7b3190c0ecd5b88688aa5e55d3085f0fbd40e11.tar.bz2 | |
Instrument MojoShellConnectionImpl::BindToMessagePipe
This adds a histogram to measure the duration of calls to
MojoShellConnectionImpl::BindToMessagePipe in child processes.
The new histogram replaces a useless one which was recently added
to measure uninteresting calls to MojoShellConnection::Create()
in renderers.
BindToMessagePipe cost should be significantly reduced in a
follow-up CL, but it will still need to do some non-trivial
amount of work. This metric will help us detect if it remains
problematic or regresses.
BUG=591742
R=ben@chromium.org
Review URL: https://codereview.chromium.org/1782133002
Cr-Commit-Position: refs/heads/master@{#380555}
Diffstat (limited to 'tools/metrics')
| -rw-r--r-- | tools/metrics/histograms/histograms.xml | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/tools/metrics/histograms/histograms.xml b/tools/metrics/histograms/histograms.xml index b3254d0..0991368 100644 --- a/tools/metrics/histograms/histograms.xml +++ b/tools/metrics/histograms/histograms.xml @@ -22047,12 +22047,12 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries. </summary> </histogram> -<histogram name="Mojo.Shell.RenderProcessInitializationTime" units="ms"> +<histogram name="Mojo.Shell.ChildConnectionTime" units="ms"> <owner>rockot@chromium.org</owner> <summary> - Measures the time it takes for a new render process to receive an + Measures the time it takes for a new child process to receive an initialization request from the Mojo shell. This is precisely the duration - of the MojoShellConnectionImpl::Create() call in RendererMain. + of the MojoShellConnectionImpl::BindToMessagePipe() call in ChildThreadImpl. </summary> </histogram> |