From: Aaron Scamehorn <ajscam@gmail.com>
To: linux-kernel@vger.kernel.org
Subject: Re: High CPU usage of scheduler?
Date: Thu, 2 Aug 2012 21:45:12 +0000 (UTC) [thread overview]
Message-ID: <loom.20120802T221324-739@post.gmane.org> (raw)
In-Reply-To: <CAAcYxUe-26DNZHqC8t4D7RgET6c_SYA=2AFa3DgPHR8cKYzxDA@mail.gmail.com>
Dave Johansen <davejohansen <at> gmail.com> writes:
>
> Here's an updated version that measures the user and system time of
> each thread and also outputs those results. It also has a correction
> for how the mean and standard deviation are updated inside of the
> outer_iterations loop.
>
> The updated results are available here:
> http://unix.stackexchange.com/questions/37391/high-cpu-usage-with-cfs
> and here:
> https://bugzilla.redhat.com/show_bug.cgi?id=812148
>
> Any other tests I can run to help diagnose the problem?
>
> Thanks,
> Dave
>
> Attachment (test_sleep.c): text/x-csrc, 11 KiB
I tried to take a look at that bugzilla, but Redhat is saying that it is "an
internal bugzilla, and not visible to the public."
Have there been any updates on this?
Thanks,
Aaron
prev parent reply other threads:[~2012-08-02 21:50 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-26 22:08 Dave Johansen
2012-04-27 3:10 ` Yong Zhang
2012-04-27 15:23 ` Dave Johansen
2012-04-30 17:29 ` Dave Johansen
2012-04-30 18:50 ` Dave Johansen
2012-05-01 5:11 ` Dave Johansen
2012-05-01 17:28 ` Dave Johansen
2012-05-07 18:12 ` Dave Johansen
2012-08-02 21:45 ` Aaron Scamehorn [this message]
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