From: Nick Piggin <nickpiggin@yahoo.com.au>
To: Antti Lankila <alankila@elma.net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: elevator=as, or actually gpm doesn't get time from scheduler???
Date: Tue, 20 Apr 2004 10:13:15 +1000 [thread overview]
Message-ID: <40846B1B.2010103@yahoo.com.au> (raw)
In-Reply-To: <Pine.A41.4.58.0404191609060.42820@tokka.elma.fi>
Antti Lankila wrote:
> My X reads gpmdata, so perhaps that's the problem? I now undercut gpm in
> order to examine the situation, and my system behaves _perfectly_ as far as
> I can see. The mouse issues are all gone. (gpm is still running in the
> background, X just reads psaux directly. As I have understood, this is
> possible in 2.6 while in 2.4 it caused a problem for multiple readers.)
>
> I progress from now by removing gpm on all my systems. There's still the
> issue what gpm (or maybe kernel's scheduler) is doing wrong, I suppose.
> Nevertheless, gpm is virtually useless for me and has so far caused far more
> grief than its utility has ever been worth.
>
> I'm sorry for having wasted your time with this.
>
Not at all, thank you for reporting the problem.
It seems the CPU scheduler is a bit fragile when there
are a number of interrelated processes. Note: I don't
know whether my scheduler fixes this case or not, it might
just be a difficult problem.
prev parent reply other threads:[~2004-04-20 0:13 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-19 13:11 elevator=as, or actually gpm doesn't get time from scheduler??? Antti Lankila
2004-04-19 13:33 ` Helge Hafting
2004-04-20 0:13 ` Nick Piggin [this message]
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