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From: Roger Luethi <rl@hellgate.ch>
To: Nick Piggin <piggin@cyberone.com.au>
Cc: linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [CFT][PATCH] new scheduler policy
Date: Fri, 22 Aug 2003 10:55:08 +0200	[thread overview]
Message-ID: <20030822085508.GA10215@k3.hellgate.ch> (raw)
In-Reply-To: <3F4182FD.3040900@cyberone.com.au>

On Tue, 19 Aug 2003 11:53:01 +1000, Nick Piggin wrote:
> I haven't run many tests on it - my mind blanked when I tried to
> remember the scores of scheduler "exploits" thrown around. So if
> anyone would like to suggest some, or better still, run some,
> please do so. And be nice, this isn't my type of scheduler :P

I timed a pathological benchmark from hell I've been playing with lately.
Three consecutive runs following a fresh boot. Time is in seconds:

2.4.21			821	21	25
2.6.0-test3-mm1		724	946	896
2.6.0-test3-mm1-nick	905	987	997

Runtime with ideal scheduling: < 2 seconds (we're thrashing).

If anybody has thrashing test cases closer to the real world, I'd be very
interested to learn about them.

Roger

  parent reply	other threads:[~2003-08-22  8:55 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-08-19  1:53 [CFT][PATCH] new scheduler policy Nick Piggin
2003-08-19  2:35 ` William Lee Irwin III
2003-08-19  2:46   ` Nick Piggin
2003-08-19  2:59     ` Nick Piggin
2003-08-19  5:15       ` Matt Mackall
2003-08-19  5:34         ` Nick Piggin
2003-08-19  5:45           ` Matt Mackall
2003-08-19 10:24 ` Mike Galbraith
2003-08-19 13:40   ` Nick Piggin
2003-08-19 18:49     ` Mike Galbraith
2003-08-20  2:13   ` William Lee Irwin III
2003-08-25 13:47     ` Haoqiang Zheng
2003-08-25 14:03       ` Nick Piggin
2003-08-25 15:11         ` Haoqiang Zheng
2003-09-02 14:25           ` Pavel Machek
2003-09-08 13:40             ` Alan Cox
2003-09-08 14:20               ` Haoqiang Zheng
2003-09-08 14:28                 ` Alan Cox
2003-09-08 15:10                   ` Haoqiang Zheng
2003-08-22  8:55 ` Roger Luethi [this message]
2003-08-22 13:08   ` Nick Piggin
2003-08-22 15:11     ` Roger Luethi
2003-08-23  0:22       ` Nick Piggin

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