linux-kernel - Re: [patch] CFS scheduler, -v14

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Message-ID: <465B78AC.4050009@gmail.com>
Date:	Tue, 29 May 2007 08:49:48 +0800
From:	Li Yu <raise.sail@...il.com>
To:	Ingo Molnar <mingo@...e.hu>
CC:	linux-kernel@...r.kernel.org
Subject: Re: [patch] CFS scheduler, -v14

Li Yu wrote:
>
> But as I observe by cat /proc/sched_debug (2.6.21.1, UP, RHEL4), I 
> found the all waiting fields often are more than zero, or less than zero.
>
> IMHO, the sum of task_struct->wait_runtime just is the denominator of 
> all runnable time in some ways, is it right? if so, increasing the sum 
> of wait_runtime just make scheduling decision more precise. so what's 
> meaning for keeping the wait_runtime is zero-sum?
>
Forget it pls, here I am wrong, sorry for pestering.

Good luck

- Li Yu

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