Messages in this thread | | | Date | Fri, 17 Jun 2016 16:40:54 +0800 | From | Jisheng Zhang <> | Subject | Re: regression caused by 08f511fd41c3 ("cpufreq: Reduce cpufreq_update_util() overhead a bit") |
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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
thanks
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