linux-kernel - Re: BFS vs. mainline scheduler benchmarks and measurements

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Message-ID: <20090907115750.GW18599@kernel.dk>
Date:	Mon, 7 Sep 2009 13:57:51 +0200
From:	Jens Axboe <jens.axboe@...cle.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Con Kolivas <kernel@...ivas.org>, linux-kernel@...r.kernel.org,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Mike Galbraith <efault@....de>
Subject: Re: BFS vs. mainline scheduler benchmarks and measurements

On Mon, Sep 07 2009, Jens Axboe wrote:
> Scheduler       Runtime         Max lat     Avg lat     Std dev
> ----------------------------------------------------------------
> CFS             100             951         462         267
> CFS-x2          100             983         484         308
> BFS
> BFS-x2

Those numbers are buggy, btw, it's not nearly as bad. But responsiveness
under compile load IS bad though, the test app just didn't quantify it
correctly. I'll see if I can get it working properly.

-- 
Jens Axboe

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