From: Ingo Molnar <mingo@elte.hu>
To: "S.Çağlar Onur" <caglar@pardus.org.tr>
Cc: linux-kernel@vger.kernel.org,
Linus Torvalds <torvalds@linux-foundation.org>,
Andrew Morton <akpm@linux-foundation.org>,
Con Kolivas <kernel@kolivas.org>, Nick Piggin <npiggin@suse.de>,
Mike Galbraith <efault@gmx.de>,
Arjan van de Ven <arjan@infradead.org>,
Peter Williams <pwil3058@bigpond.net.au>,
Thomas Gleixner <tglx@linutronix.de>, Willy Tarreau <w@1wt.eu>,
Gene Heskett <gene.heskett@gmail.com>, Mark Lord <lkml@rtr.ca>,
Zach Carter <linux@zachcarter.com>,
Kasper Sandberg <lkml@metanurb.dk>,
buddabrod <buddabrod@gmail.com>,
Srivatsa Vaddagiri <vatsa@in.ibm.com>
Subject: Re: [patch] CFS scheduler, -v7
Date: Sun, 29 Apr 2007 09:11:17 +0200 [thread overview]
Message-ID: <20070429071117.GA3612@elte.hu> (raw)
In-Reply-To: <200704290242.43741.caglar@pardus.org.tr>
* S.Çağlar Onur <caglar@pardus.org.tr> wrote:
> Ingo, please ignore my first report until i found a proper way to
> reproduce the slowness cause currently CFS-v7, CFS-v7 + "renice
> patch", CFS-v7 + renice + your private mail suggestions and CFS-v6 +
> "PI support for futexes patch" seems works equally (which is a good
> thing so X renicing seems really not needed, [...]
oh, good!
> [...] and there were no regression instead of my daydreams) or im too
> tired to understand the differences.
could the CPU have dropped speed for that bootup (some CPUs do that
automatically upon overheating), or perhaps if you are using some RAID
array, could it have done a background resync? Especially the bootup
slowdown you saw seemed significant, and because bootup speed is 90% IO
dominated, the CPU scheduler seems an unlikely candidate.
Ingo
next prev parent reply other threads:[~2007-04-29 7:12 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-28 15:25 [patch] CFS scheduler, -v7 Ingo Molnar
2007-04-28 19:20 ` S.Çağlar Onur
2007-04-28 19:24 ` Ingo Molnar
2007-04-28 23:42 ` S.Çağlar Onur
2007-04-29 7:11 ` Ingo Molnar [this message]
2007-04-29 12:37 ` S.Çağlar Onur
2007-04-29 15:58 ` Ingo Molnar
2007-04-29 22:29 ` Dennis Brendel
2007-04-30 14:38 ` S.Çağlar Onur
2007-04-28 19:27 ` S.Çağlar Onur
2007-04-29 17:28 ` Prakash Punnoor
2007-05-04 13:05 ` Prakash Punnoor
2007-04-30 16:29 ` Srivatsa Vaddagiri
2007-04-30 18:30 ` Balbir Singh
-- strict thread matches above, loose matches on Subject: below --
2007-04-30 5:20 Al Boldi
2007-05-03 7:45 ` Ingo Molnar
2007-05-03 8:07 ` Ingo Molnar
2007-05-03 11:16 ` Al Boldi
2007-05-03 12:36 ` Ingo Molnar
2007-05-03 13:49 ` Al Boldi
2007-05-03 8:42 ` Al Boldi
2007-05-03 15:02 ` Ting Yang
2007-05-03 15:17 ` Ingo Molnar
2007-05-03 16:00 ` Ting Yang
2007-05-03 19:48 ` Ingo Molnar
2007-05-03 19:57 ` William Lee Irwin III
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