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Status: Assigned
Owner:
Cc:
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EstimatedDays: ----
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OS: Linux
Pri: 3
Type: Bug



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Fine-tune Linux/Win "sizes" metrics to produce fewer alerts?

Project Member Reported by mustaq@chromium.org, Dec 19

Issue description

It seems the tests are creating alerts even for very small (< ~0.1%) changes.  Here is an example:
https://chromeperf.appspot.com/group_report?sid=59f91245344e8d90e3508368ba8add46213482276a9db8d2becce3d6f2e4c492

Regression sheriffs have to ignore them anyway, so I think it would be better if we can skip alerts for changes below a reasonable threshold (absolute/percentage).

thestig@: Do you agree as the test owner?
 
Cc: grt@chromium.org
Summary: Fine-tune Linux/Win "sizes" metrics to produce fewer alerts? (was: Is it possible to fine-tune Google Chrome Linux x64 "sizes" metrics to produce fewer alerts?)
Looks like Windows "sizes" have the same problem.  E.g.:
https://chromeperf.appspot.com/group_report?sid=4d9c32af4cacd2ac4467447ffd29b3da8ced974965abd9c1681e0c3e55920e3b

Ccing the owner.
Cc: thomasanderson@chromium.org
We probably need to first clean up our measurements and make sure we are measuring the relevant / correct sizes.

On Linux, the chrome sizes are approximately 5.5 GB. I'm guessing this is an unstripped file size. But we don't really care about that. What we care about is the stripped chrome binary size, and the size of the .deb / .rpm we ship to users.

On Windows, why do we even bother measuring sizes of .pdb files?
Today I encountered these ~25 alerts appearing on the dashboard for Windows .pdb files, none of them should need manual triage IMO:
https://chromeperf.appspot.com/group_report?sid=7c5d266d506e60dcf164e2f0c96d4c97b625097f867cde6d9804bb6e7fe3f084


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