Messages in this thread | | | Date | Sun, 27 Nov 2022 13:06:42 +0100 | Subject | Re: [PATCH v1] Revert "cpufreq: schedutil: Move max CPU capacity to sugov_policy" #forregzbot | From | Thorsten Leemhuis <> |
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On 20.11.22 19:07, Thorsten Leemhuis wrote: > On 10.11.22 20:57, Sam Wu wrote: >> This reverts commit 6d5afdc97ea71958287364a1f1d07e59ef151b11. >> >> On a Pixel 6 device, it is observed that this commit increases >> latency by approximately 50ms, or 20%, in migrating a task >> that requires full CPU utilization from a LITTLE CPU to Fmax >> on a big CPU. Reverting this change restores the latency back >> to its original baseline value. >> >> Fixes: 6d5afdc97ea7 ("cpufreq: schedutil: Move max CPU capacity to sugov_policy") >> Cc: Lukasz Luba <lukasz.luba@arm.com> >> Cc: Saravana Kannan <saravanak@google.com> >> Cc: Isaac J. Manjarres <isaacmanjarres@google.com> >> Signed-off-by: Sam Wu <wusamuel@google.com> > > Thanks for the report. To be sure below issue doesn't fall through the > cracks unnoticed, I'm adding it to regzbot, my Linux kernel regression > tracking bot: > > #regzbot ^introduced 6d5afdc97ea7 > #regzbot title cpufreq: schedutil: improved latency on Pixel 6 > #regzbot ignore-activity
#regzbot fixed-by: cdcc5ef26b3
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