From: Mike Galbraith <efault@gmx.de>
To: Con Kolivas <kernel@kolivas.org>
Cc: Andrew Morton <akpm@osdl.org>,
linux-kernel@vger.kernel.org, mingo@elte.hu
Subject: Re: [2.6.16-rc6 patch] fix interactive task starvation
Date: Sat, 18 Mar 2006 10:43:56 +0100 [thread overview]
Message-ID: <1142675036.9000.3.camel@homer> (raw)
In-Reply-To: <200603181915.48098.kernel@kolivas.org>
On Sat, 2006-03-18 at 19:15 +1100, Con Kolivas wrote:
> On Saturday 18 March 2006 19:05, Andrew Morton wrote:
> > Mike Galbraith <efault@gmx.de> wrote:
> > > The patch below fixes a starvation problem that occurs when a stream of
> > > highly interactive tasks delay an array switch for extended periods
> > > despite EXPIRED_STARVING(rq) being true. AFAIKT, the only choice is to
> > > enqueue awakening tasks on the expired array in this case.
> > >
> > > Without this patch, it can be nearly impossible to remotely login to a
> > > busy server, and interactive shell commands can starve for minutes.
> > >
> > > This has not been verified by anyone. Comments?
> >
> > What does that question mean, btw?
>
> He's waiting for me to say I don't like it. But I do like it.
<chuckle>
No. Actually, I'm waiting for Ingo to just yawn and nuke the problem
with a casual flick of his pinkie.
-Mike
next prev parent reply other threads:[~2006-03-18 9:42 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-18 5:08 [2.6.16-rc6 patch] fix interactive task starvation Mike Galbraith
2006-03-18 5:15 ` Andrew Morton
2006-03-18 5:50 ` Mike Galbraith
2006-03-18 6:22 ` Andrew Morton
2006-03-18 7:29 ` Mike Galbraith
2006-03-18 7:33 ` Andrew Morton
2006-03-18 7:48 ` Mike Galbraith
2006-03-18 7:52 ` Andrew Morton
2006-03-18 8:51 ` Ingo Molnar
2006-03-18 8:05 ` Andrew Morton
2006-03-18 8:15 ` Con Kolivas
2006-03-18 9:43 ` Mike Galbraith [this message]
2006-03-18 8:52 ` Ingo Molnar
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