linux-kernel - Re: Interactivity issue in 2.6.25-rc3

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Message-ID: <20080229183639.GC8258@elte.hu>
Date:	Fri, 29 Feb 2008 19:36:39 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	ray-lk@...rabbit.org, linux-kernel@...r.kernel.org
Subject: Re: Interactivity issue in 2.6.25-rc3


* Carlos R. Mafra <crmafra2@...il.com> wrote:

> > and obviously, even if you only 'feel' long delays that's too an 
> > anomaly by definition, no matter what the scripts say about it. It 
> > might even be a scheduler anomaly as well: for example if the 
> > scheduler clock has an anomaly - on which the delay statistics are 
> > based too.
> 
> But if the scripts say all 'se.wait_max' are < 40 msecs than it is not 
> CFS' fault, right? Even if it takes 3 seconds for a typed letter to 
> appear in the terminal?

yeah, in 99.9% of the cases it's not the scheduler's fault.

	Ingo
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