From: Jisheng Zhang <jszhang@marvell.com>
To: <rjw@rjwysocki.net>, <viresh.kumar@linaro.org>,
<linux-pm@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: regression caused by 08f511fd41c3 ("cpufreq: Reduce cpufreq_update_util() overhead a bit")
Date: Fri, 17 Jun 2016 16:30:23 +0800 [thread overview]
Message-ID: <20160617163023.5bb374f8@xhacker> (raw)
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.
Thanks,
Jisheng
next reply other threads:[~2016-06-17 8:34 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-17 8:30 Jisheng Zhang [this message]
2016-06-17 8:40 ` regression caused by 08f511fd41c3 ("cpufreq: Reduce cpufreq_update_util() overhead a bit") Jisheng Zhang
2016-06-17 13:09 ` Rafael J. Wysocki
2016-06-17 13:16 ` Paul E. McKenney
2016-06-17 14:03 ` Peter Zijlstra
2016-06-17 15:32 ` regression caused by bb6ab52f2bef ("intel_pstate: Do not set utilization update hook too early") Jisheng Zhang
2016-06-17 15:40 ` Rafael J. Wysocki
2016-06-17 15:42 ` Rafael J. Wysocki
2016-06-17 15:53 ` Jisheng Zhang
2016-06-17 16:09 ` Jisheng Zhang
2016-06-25 0:14 ` Rafael J. Wysocki
2016-06-25 15:09 ` Pandruvada, Srinivas
2016-06-26 0:27 ` Doug Smythies
2016-06-27 6:08 ` Jisheng Zhang
2016-06-23 16:07 ` Doug Smythies
2016-06-25 0:03 ` Rafael J. Wysocki
2016-06-17 15:32 ` regression caused by 08f511fd41c3 ("cpufreq: Reduce cpufreq_update_util() overhead a bit") Rafael J. Wysocki
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