We use more power now than reference build for playing video |
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Issue descriptionSpecifically the test case is crowd1080.webm video. See https://chromeperf.appspot.com/report?sid=1c809f9702c0a0ed6dd297b47269a6f11431ead2aedf23677db3d6c4957f6f3f&start_rev=505521&end_rev=513864 There's a ton of noise, but what I see is that we consistently use about .15 watts more power in ToT than in Reference. Looks like current reference build is 62.0.3194.0 (updated to that in August, but omahaproxy can't find revision number for that. see issue 781466) and current mac canary is 64.0.3257.0 (revision 513642). I'm going to try to put off a bisection just to see what we can find.
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Nov 4 2017
😿 Pinpoint job stopped with an error. https://pinpoint-dot-chromeperf.appspot.com/job/1699eb32f80000
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Nov 4 2017
Pinpoint failed in an RPC call to appengine :(
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Nov 9 2017
📍 Pinpoint job started. https://pinpoint-dot-chromeperf.appspot.com/job/1106222ef80000
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Nov 9 2017
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Nov 10 2017
📍 Found a significant difference after 1 commit. https://pinpoint-dot-chromeperf.appspot.com/job/1106222ef80000 Rename TBMv2 media benchmarks By johnchen@chromium.org · Mon Oct 09 19:59:40 2017 chromium @ b451847e6fc207b7f39c986b74712bfb33132874 Understanding performance regressions: http://g.co/ChromePerformanceRegressions
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Nov 10 2017
Argggg! We should never rename benchmarks again. Totally not worth it given that the tooling is broken.
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Nov 10 2017
+Dave: is it possible to tweak pinpoint so it can understand benchmark rename, metric rename?
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Nov 10 2017
Thanks Ned! Also note that this isn't the only time that the rename has caused us problems. We had many bisections that we did right after the rename that were all unsuccessful.
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Nov 10 2017
Caleb: wdyt about doing bisect from "Start --> Before rename" & "After rename --> now"?
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Nov 10 2017
Sure. that would be great. Good idea. But I don't know how to kick off a bisect against the old name of a benchmark. I always use the dashboard UI to kick off the bisect. Is there a commandline tool?
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Nov 10 2017
+Simon & Dave
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Nov 16 2017
There isn't a commandline tool no, we'd have to do a one-off where we force the name in Dashboard.
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Dec 19 2017
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Comment 1 by 42576172...@developer.gserviceaccount.com
, Nov 4 2017