From: Con Kolivas <kernel@kolivas.org>
To: mru@users.sourceforge.net (Måns Rullgård), linux-kernel@vger.kernel.org
Subject: Re: [PATCH] O17int
Date: Wed, 20 Aug 2003 11:19:40 +1000 [thread overview]
Message-ID: <200308201119.41093.kernel@kolivas.org> (raw)
In-Reply-To: <yw1xbrulxyn8.fsf@users.sourceforge.net>
On Wed, 20 Aug 2003 04:58, Måns Rullgård wrote:
> Another XEmacs strangeness:
>
> When compiling from xemacs, everything is fine until the compilation
> is done. Then xemacs starts spinning wildly in some loop doing this:
> This goes on for anything from half a second to several seconds.
> During that time other processes, except X, are starved.
>
> I saw this first with 2.6.0-test1 vanilla, then it went away in -test2
> and -test3, only to show up again with O16.3int. My O16.2 kernel
> seems ok, which seems strange to me since the difference from O16.2 to
> O16.3 is very small.
While being a small patch, 16.2-16.3 was a large change. It removed the very
aggressive starvation avoidance of spin on wait waker/wakee in 16.2, which
clearly helped your issue.
> Any ideas?
Pretty sure we have another spinner. A reniced -11 batch run of top -d 1 and
vmstat during the spinning, and a kernel profile for that time will be
helpful.
Con
next prev parent reply other threads:[~2003-08-20 1:12 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-19 15:01 [PATCH] O17int Con Kolivas
2003-08-19 16:39 ` Måns Rullgård
2003-08-20 1:23 ` Con Kolivas
2003-08-20 9:19 ` Måns Rullgård
2003-08-19 18:58 ` Måns Rullgård
2003-08-20 1:19 ` Con Kolivas [this message]
2003-08-20 8:53 ` Måns Rullgård
2003-08-20 16:27 ` Wiktor Wodecki
2003-08-20 16:42 ` Nick Piggin
2003-08-20 21:23 ` Con Kolivas
2003-08-21 5:26 ` Con Kolivas
2003-08-21 7:53 ` Mike Galbraith
2003-08-21 11:46 ` Con Kolivas
2003-08-21 15:14 ` Mike Galbraith
2003-08-21 22:18 ` Wes Janzen
2003-08-22 0:09 ` Con Kolivas
2003-08-22 21:17 ` Wes Janzen
2003-08-22 0:42 ` Felipe Alfaro Solana
2003-08-22 5:34 ` Mike Galbraith
2003-08-22 20:48 ` Wes Janzen
2003-08-21 23:59 ` Con Kolivas
2003-08-22 5:11 ` Mike Galbraith
2003-08-21 5:30 ` Apurva Mehta
-- strict thread matches above, loose matches on Subject: below --
2003-08-20 4:55 Voluspa
2003-08-20 8:00 ` Mike Galbraith
2003-08-20 11:21 ` Con Kolivas
2003-08-20 22:51 Voluspa
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