linux-kernel - Re: [patch] CFS scheduler, -v6

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Message-ID: <75b66ecd0704271416v535390b6t5d2d5677547b3ba2@mail.gmail.com>
Date:	Fri, 27 Apr 2007 17:16:53 -0400
From:	"Lee Revell" <rlrevell@...-job.com>
To:	"Ingo Molnar" <mingo@...e.hu>
Cc:	"Kasper Sandberg" <lkml@...anurb.dk>,
	"Gene Heskett" <gene.heskett@...il.com>,
	linux-kernel@...r.kernel.org,
	"Linus Torvalds" <torvalds@...ux-foundation.org>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Con Kolivas" <kernel@...ivas.org>,
	"Nick Piggin" <npiggin@...e.de>, "Mike Galbraith" <efault@....de>,
	"Arjan van de Ven" <arjan@...radead.org>,
	"Peter Williams" <pwil3058@...pond.net.au>,
	"Thomas Gleixner" <tglx@...utronix.de>, caglar@...dus.org.tr,
	"Willy Tarreau" <w@....eu>, "Mark Lord" <lkml@....ca>,
	"Zach Carter" <linux@...hcarter.com>,
	buddabrod <buddabrod@...il.com>
Subject: Re: [patch] CFS scheduler, -v6

On 4/27/07, Ingo Molnar <mingo@...e.hu> wrote:
> ogg123 never skips. Then i cranked up the load to 50 infinite loops (!).
> No problems whatsoever. No problems at 100 tasks either. No problems
> with 250 (!) nice-0 infinite loops running either:

Different soundcards support different ranges and defaults for buffer
and period sizes and many naive apps don't bother to set a sane buffer
size.  Check the PCM states under /proc/asound/ on both good and bad
configs.

Lee
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