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Subject[ANNOUNCE] sched: schedtop utility v0.3
>>> On Thu, May 22, 2008 at 10:06 AM, in message <483545B4.BA47.005A.0@novell.com>,
Gregory Haskins wrote:
> Hi all scheduler developers,
> I had an itch to scratch w.r.t. watching the stats in /proc/schedstats,
> and it appears that the perl scripts referenced in
> Documentation/scheduler/sched-stats.txt do not support v14 from HEAD so I
> whipped up a little utility I call "schedtop".
>
> This utility will process statistics from /proc/schedstat such that the
> busiest stats will bubble up to the top. It can alternately be sorted by the
> largest stat, or by name. Stats can be included or excluded based on reg-ex
> pattern matching.
>
> You can download the tarball here:
>
> ftp://ftp.novell.com/dev/ghaskins/schedtop.tar.gz
>
> I have also posted it to the opensuse build service for generating RPMS for
> a handful of 32/64-bit x86 distros for your convenience:
>
> http://download.opensuse.org/repositories/home:/ghaskins/
>
> (Note that the build is still in progress for some of the favors, so if you
> do not see the flavor you are looking for, check back in a little while)
>
> Comments/feedback/bug-fixes welcome!
>
> Regards
> -Greg

Hi All,
I have posted an update to schedtop (v0.3) which adds /proc/<pid>/schedstats and /proc/<pid>/sched stats to the mix.

Also note that there is a comprehensive filtering mechanism built into all versions of schedtop:

"-i <REGEX>" sets the *include* pattern, and
"-x <REGEX> sets the *exclude* pattern.

By default, -i is set to allow everything, and -x is set to exclude nothing. A common config for me is to use "-x sched_info" since those sched_info stats seem to always be moving rapidly and can cloud stats that are more interesting (to me, anyway).

Let me know if you have any questions. Comments/feedback are welcome

-Greg





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