linux-kernel - Re: [patch] CFS scheduler, -v8

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Message-ID: <20070502064510.GB27210@elte.hu>
Date:	Wed, 2 May 2007 08:45:10 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Mike Galbraith <efault@....de>
Cc:	linux-kernel@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Con Kolivas <kernel@...ivas.org>,
	Nick Piggin <npiggin@...e.de>,
	Arjan van de Ven <arjan@...radead.org>,
	Peter Williams <pwil3058@...pond.net.au>,
	Thomas Gleixner <tglx@...utronix.de>, caglar@...dus.org.tr,
	Willy Tarreau <w@....eu>,
	Gene Heskett <gene.heskett@...il.com>, Mark Lord <lkml@....ca>,
	Zach Carter <linux@...hcarter.com>,
	buddabrod <buddabrod@...il.com>, Balbir Singh <balbir@...ibm.com>
Subject: Re: [patch] CFS scheduler, -v8


* Mike Galbraith <efault@....de> wrote:

> > As usual, any sort of feedback, bugreport, fix and suggestion is 
> > more than welcome,
> 
> Greetings,
> 
> I noticed a (harmless) bounds warning triggered by the reduction in 
> size of array->bitmap.  Patchlet below.

thanks, applied! Your patch should also speed up task selection of RT 
tasks a bit. (the patch removes ~40 bytes of code). And on 64-bit we now 
fit into 2x 64-bit bitmap and thus are now down to two Find-First-Set 
instructions. Nice :)

	Ingo
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