linux-kernel - Re: [PATCH 7/7] CPU controller V1

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Message-ID: <20060822140124.GC7125@in.ibm.com>
Date:	Tue, 22 Aug 2006 19:31:24 +0530
From:	Srivatsa Vaddagiri <vatsa@...ibm.com>
To:	Mike Galbraith <efault@....de>
Cc:	Ingo Molnar <mingo@...e.hu>, Nick Piggin <nickpiggin@...oo.com.au>,
	Sam Vilain <sam@...ain.net>, linux-kernel@...r.kernel.org,
	Kirill Korotaev <dev@...nvz.org>,
	Balbir Singh <balbir@...ibm.com>, sekharan@...ibm.com,
	Andrew Morton <akpm@...l.org>, nagar@...son.ibm.com,
	matthltc@...ibm.com, dipankar@...ibm.com
Subject: Re: [PATCH 7/7] CPU controller V1 - (temporary) cpuset interface

On Tue, Aug 22, 2006 at 03:23:29PM +0000, Mike Galbraith wrote:
> > I try it with everything in either root or mikeg.

How did you transfer everything to root? By cat'ing each task pid
(including init's) to root (or mikeg) task's file?

I will give your experiment a try here and find out what's happening.

You said that you spawn a task which munches ~80% cpu. Is that by
something like:

do {
	gettimeofday(&t1, NULL);
loop:
	gettimeofday(&t2, NULL);
	while (t2.tv_sec - t1.tv_sec != 48)
		goto loop;
	sleep 12

} while (1);
	

> That didn't work.

Ok. I will repeat your experiment and see what I can learn from it.


-- 
Regards,
vatsa
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