Investigate high task load in background tabs |
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Issue descriptionThis is a tracking bug for all bugs filed based on high-load-in-background slow reports.
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Aug 20
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Aug 20
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Aug 21
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Sep 5
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Sep 17
Looks like something has regressed again here. Canary has jumped to 15% CPU usage in the 99th percentile: https://uma.googleplex.com/p/chrome/timeline_v2/?sid=40efa19e6f8a16675e4657aeef5d14f6
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Sep 17
The interesting thing is that the total cpu time (as measured by RendererScheduler.TaskDurationPerThreadType) remained more or less the same.
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Sep 17
Did something in the load metric change? The number of reported slow reports also stayed about the same.
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Sep 18
It seems that the number of the samples has massively decreased (from 4 billion/day to 1 billion/day). I suspect that the number of active renderers has decreased, but I'm not quite sure why. It looks like proactive discarding, but it's not enabled on Android. It's something something OOPIF, I guess.
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Yesterday
(47 hours ago)
altimin@, is this still an issue?
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Yesterday
(46 hours ago)
Given that nobody has done much work in the area, I believe that it is. However, I don't think that it's a priority for us right now. |
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Comment 1 by altimin@chromium.org
, Aug 15