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32.1% regression in cheets_GFXBenchTest/gl_alu2 on cros-samus at 29840000921200001:29870080920200400 |
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Issue descriptionPerformance dashboard identified a 32.1% regression in cheets_GFXBenchTest/gl_alu2 on cros-samus at revision range 29840000921200001:29870080920200400. Graph: https://chromeperf.appspot.com/report?masters=ARC&bots=cros-samus&tests=cheets_GFXBenchTest%2Fgl_alu2&checked=gl_alu2%2Cgl_alu2_ref%2Cref&rev=29870080920200400 This also happens on other platform: cyan, veyron_minnie, elm, chell and kevin. The root cause would be in the range of one of the following: ChromeOS: 57.9202.7.0 - 57.9202.8.0 Chrome: 57.0.2987.11 - 57.0.2987.16 I would use bisection tool to narrow down the range.
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Feb 15 2017
graphics related change seems to come from skuhne in that rage https://android-build-uber.corp.google.com/repo.html?last_bid=3678932&bid=3683395&branch=git_mnc-dr-arc-dev
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Feb 15 2017
3678932 Good 3680211 3681387 3681553 3681667 Good 3681779 3681878 3682059 Good 3682651 Bad 3683395 Bad which means the cause is between build 3682651 and 3682059 Candidates: https://googleplex-android.git.corp.google.com/platform/frameworks/base/+/60122b276d22479fa214e479e81334bdce92da7a https://googleplex-android.git.corp.google.com/platform/packages/apps/Settings/+/91f672b0e0c36a277ea12c413c71ff57d8d6014f https://googleplex-android.git.corp.google.com/platform/vendor/unbundled_google/packages/PrebuiltGmsCore/+/4a25ec2265016f977297c5e897abf3f2b88fbba2
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Feb 15 2017
The third one is a V8 change, so the culprit should be one of the first two. Stefan, could you take a look?
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May 8 2017
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Dec 12 2017
Can we close this? |
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Comment 1 by hctsai@chromium.org
, Feb 15 2017