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15.5%-38.9% regression in media_perftests at 599496:599504 |
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Issue descriptionSee the link to graphs below.
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Oct 15
📍 Pinpoint job started. https://pinpoint-dot-chromeperf.appspot.com/job/14780a6ce40000
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Oct 15
📍 Found a significant difference after 1 commit. https://pinpoint-dot-chromeperf.appspot.com/job/14780a6ce40000 Roll AFDO from 71.0.3578.2_rc-r1 to 72.0.3579.0_rc-r1 by chromium-autoroll@skia-public.iam.gserviceaccount.com https://chromium.googlesource.com/chromium/src/+/c5dcad34966ab45f11d8826212660265a3445881 clockless_video_playback_vp9: 32.89 → 32.43 (-0.4633) Understanding performance regressions: http://g.co/ChromePerformanceRegressions
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Oct 31
It appears you were the Sheriff on the specific roll, could please review and reassign as appropriate.
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Nov 2
AFDO rolls are known to cause noise sometimes; looks like this recovered quite quickly, and I can't see any recent AFDO-induced noise, so there's not much to really do here. Normally the spike back up coincides with another AFDO roll, though that isn't the case here, which is... mildly interesting. In fact, the only two commits I can see on the 'recovered' edge are a Clank roll and version bump... Neither of which should really cause perf differences for Linux. Hm. In any case, like said, this appears to be a one-off thing that we've already recovered from fully, so I'm declaring victory and moving on :) |
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Comment 1 by 42576172...@developer.gserviceaccount.com
, Oct 15