linux-kernel - Re: SCHED_IDLE documentation

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Date:	Mon, 3 Mar 2008 09:40:24 +0100
From:	"Michael Kerrisk" <mtk.manpages@...glemail.com>
To:	"Ingo Molnar" <mingo@...e.hu>
Cc:	"Arnd Bergmann" <arnd@...db.de>, "Christoph Hellwig" <hch@....de>,
	cbe-oss-dev@...abs.org, "Jeremy Kerr" <jk@...abs.org>,
	linux-kernel@...r.kernel.org
Subject: Re: SCHED_IDLE documentation

On Mon, Mar 3, 2008 at 8:33 AM, Ingo Molnar <mingo@...e.hu> wrote:
>
> * Arnd Bergmann <arnd@...db.de> wrote:
>
> > If we don't have any man page, what is the actual definition of
> > SCHED_IDLE anyway?
>
> it's rather simple: "it's a priority level even lower priority than nice
> +19".

Some other questions whose answers may be worth including in the man page:

* When was SCHED_IDLE added?  (Actually, who added it?)

* Why was it added?  (What are the particular benefits of the new
sceuling class as opposed to using a very low nice value for
SCHED_OTHER?)

* What's the difference between SCHED_IDLE and SCHED_BATCH?

Cheers,

Michael


-- 
Michael Kerrisk
Maintainer of the Linux man-pages project
http://www.kernel.org/doc/man-pages/
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