linux-kernel - Re: [patch] CFS scheduler, -v7

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Date:	Tue, 01 May 2007 00:00:44 +0530
From:	Balbir Singh <balbir@...ux.vnet.ibm.com>
To:	Ingo Molnar <mingo@...e.hu>
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>, Mike Galbraith <efault@....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>,
	Kasper Sandberg <lkml@...anurb.dk>,
	buddabrod <buddabrod@...il.com>,
	Srivatsa Vaddagiri <vatsa@...ibm.com>
Subject: Re: [patch] CFS scheduler, -v7

Ingo Molnar wrote:
> i'm pleased to announce release -v7 of the CFS scheduler patchset. (The 
> main goal of CFS is to implement "desktop scheduling" with as high 
> quality as technically possible.)
> 
> The CFS patch against v2.6.21 (or against v2.6.20.8) can be downloaded 
> from the usual place:
> 
>     http://redhat.com/~mingo/cfs-scheduler/
> 

Hi, Ingo,

I needed the following fixes on my powerpc box to fix all warnings
generated by the compiler out during compilation. Without these fixes, I was
seeing negative values in /proc/sched_debug on my box. I still see a
negative value for "waiting"

            task   PID     tree-key       delta    waiting  switches  prio 
  wstart-fair      sum-exec      sum-wait
-------------------------------------------------------------------------------------------------------------------
R          bash  5594  69839216478     6238568   -6238568      1617   120 
-69832977910   66377151352      27173793



I've started on cfs late (with -v7), hopefully I'll catch up.
More questions, feedback will follow.

-- 
	Warm Regards,
	Balbir Singh
	Linux Technology Center
	IBM, ISTL

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