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4.3%-8.9% regression in thread_times.key_mobile_sites_smooth at 535709:535814 |
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Issue descriptionSee the link to graphs below.
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Feb 13 2018
📍 Pinpoint job started. https://pinpoint-dot-chromeperf.appspot.com/job/12e72f6d840000
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Feb 13 2018
📍 Couldn't reproduce a difference. https://pinpoint-dot-chromeperf.appspot.com/job/12e72f6d840000
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Mar 13 2018
📍 Pinpoint job started. https://pinpoint-dot-chromeperf.appspot.com/job/14b629ee440000
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Mar 13 2018
Trying another bisect.
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Mar 17 2018
😿 Pinpoint job stopped with an error. https://pinpoint-dot-chromeperf.appspot.com/job/14b629ee440000
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Mar 17 2018
+dtu: looks like the test isn't producing values and there's not much we can do to bisect?
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Mar 19 2018
Yes, but that leads to the question: why did it produce values on the perf waterfall but not bisect?
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Mar 19 2018
I don't know! Simon, who do you think would lead an investigation of why a test produced values on perf dashboard but not pinpoint?
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Mar 19 2018
Think it should start with us making sure we're parsing the data correctly. There seems to be valid histogram output, Dave got time to look at this? Otherwise punt it to me and I'll dig through.
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Mar 19 2018
Looks like the story being passed in from dashboard is "nytimes", but the story in the histogram output is "http://nytimes.com/". So it can't find the story.
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Mar 19 2018
We've probably seen a bunch of these.
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Mar 19 2018
I think these were all migrated in crbug.com/818035 Might be able to bisect this if we specify the old name, hopefully it doesn't overlap the range where the names were changed.
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Mar 19 2018
Filed a tracking bug here: https://github.com/catapult-project/catapult/issues/4346
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Mar 19 2018
📍 Pinpoint job started. https://pinpoint-dot-chromeperf.appspot.com/job/11924945440000
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Mar 19 2018
📍 Pinpoint job started. https://pinpoint-dot-chromeperf.appspot.com/job/158daeb9440000
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Mar 19 2018
(Watch out for the webview bots, they're super overloaded)
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Mar 19 2018
Ah true, can you kill the job I started in #15 then?
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Mar 19 2018
😿 Pinpoint job stopped with an error. https://pinpoint-dot-chromeperf.appspot.com/job/158daeb9440000
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Mar 19 2018
Looks like it's not sufficient to just change the "story" in the bisect form. The "trace" comes from the code.
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Mar 22 2018
😿 Pinpoint job stopped with an error. https://pinpoint-dot-chromeperf.appspot.com/job/11924945440000
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Mar 28 2018
📍 Pinpoint job started. https://pinpoint-dot-chromeperf.appspot.com/job/16f592ab440000
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Mar 28 2018
📍 Pinpoint job started. https://pinpoint-dot-chromeperf.appspot.com/job/12dddceb440000
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Mar 28 2018
😿 Pinpoint job stopped with an error. https://pinpoint-dot-chromeperf.appspot.com/job/12dddceb440000
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Mar 28 2018
Dave, can you look at the pinpoint error?
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Mar 28 2018
Looks like the story changed name in dashboard, so the bisection was run on the wrong story name. (https://github.com/catapult-project/catapult/issues/4346)
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Mar 28 2018
😿 Pinpoint job stopped with an error. https://pinpoint-dot-chromeperf.appspot.com/job/16f592ab440000
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Mar 29 2018
Thanks, Dave! WontFix-ing since this is a pretty small bump, and larger bumps later in the graph were able to be bisected, so not super worried about the story name change from #26. |
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Comment 1 by 42576172...@developer.gserviceaccount.com
, Feb 13 2018