From: Steve Rotolo <steve.rotolo@ccur.com>
To: Con Kolivas <kernel@kolivas.org>
Cc: joe.korty@ccur.com, linux-kernel@vger.kernel.org, bugsy@ccur.com
Subject: Re: SD_SHARE_CPUPOWER breaks scheduler fairness
Date: Thu, 02 Jun 2005 11:48:46 -0400 [thread overview]
Message-ID: <1117727326.1436.73.camel@whiz> (raw)
In-Reply-To: <200506022334.31430.kernel@kolivas.org>
On Thu, 2005-06-02 at 09:34, Con Kolivas wrote:
> Funny you should mention this. Check the latest -mm code and you'll see Andrew
> has merged my smp nice code which takes into account "nice" values and alters
> balancing according to nice values and heavily biases them when real time
> tasks are running. So you are correct, and it is a problem common to any
> per-cpu runqueue designed scheduler (which interestingly there is evidence
> that windows went to in about 2003 because it exhibited this very problem).
> However my code should make this behave better now.
>
Glad to hear this is in --mm! And BTW, your patch works great with my
HT test case. Thanks -- good job.
--
Steve
next prev parent reply other threads:[~2005-06-02 15:47 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-05-31 17:46 SD_SHARE_CPUPOWER breaks scheduler fairness Steve Rotolo
2005-06-01 2:49 ` Con Kolivas
2005-06-01 14:29 ` Steve Rotolo
2005-06-01 14:47 ` Con Kolivas
2005-06-01 18:41 ` Steve Rotolo
2005-06-01 21:37 ` Con Kolivas
2005-06-01 21:54 ` Con Kolivas
2005-06-01 22:01 ` Steve Rotolo
2005-06-02 3:01 ` Con Kolivas
2005-06-01 23:16 ` Joe Korty
2005-06-01 23:25 ` Con Kolivas
2005-06-02 13:30 ` Steve Rotolo
2005-06-02 13:34 ` Con Kolivas
2005-06-02 15:48 ` Steve Rotolo [this message]
2005-06-03 0:43 ` [PATCH] SCHED: run SCHED_NORMAL tasks with real time tasks on SMT siblings Con Kolivas
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