Messages in this thread | | | From | "Rafael J. Wysocki" <> | Date | Fri, 17 Jun 2016 15:09:36 +0200 | Subject | Re: regression caused by 08f511fd41c3 ("cpufreq: Reduce cpufreq_update_util() overhead a bit") |
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On Fri, Jun 17, 2016 at 10:40 AM, Jisheng Zhang <jszhang@marvell.com> wrote: > Dear all, > > On Fri, 17 Jun 2016 16:30:23 +0800 Jisheng Zhang wrote: > >> Dear all, >> >> I found one regression: In an idle system, wakeups/s (reported by powertop) >> is increased a lot, e.g on a intel snb 4 core platform, the wakeup event >> number is increased from 8 wakeups/s to 24 wakeup/s. bisect points to >> this commit. I could send detailed bisect log if it's wanted. >> > > more information maybe useful: after the commit, the top two wakeup source > are > > Process [rcu_sched] > > Timer tick_sched_timer
And what was there before the commit?
Granted, I'm not seeing this on my systems.
Paul, Peter, any ideas about what may be going on here?
Thanks, Rafael
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