linux-kernel - Re: RSDL v0.31

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Message-ID: <20070317153908.GA26036@elte.hu>
Date:	Sat, 17 Mar 2007 16:39:08 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Rik van Riel <riel@...hat.com>
Cc:	Mike Galbraith <efault@....de>, Con Kolivas <kernel@...ivas.org>,
	ck@....kolivas.org, Al Boldi <a1426z@...ab.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: RSDL v0.31

* Rik van Riel <riel@...hat.com> wrote:

> The increased AIM7 throughput (and the other benchmark results) looked 
> very promising to me.
> 
> I wonder what we're doing wrong in the normal scheduler...

there's a relatively easy way to figure out whether it's related to the 
interactivity code: try AIM7 with SCHED_BATCH as well, to take most of 
the 'interactivity effects' out of the picture.

build the attached setbatch.c code and do "./setbatch $$" to change the 
shell to SCHED_BATCH (and all its future children will be SCHED_BATCH 
too).

	Ingo

View attachment "setbatch.c" of type "text/plain" (617 bytes)