linux-kernel - Re: [patch 09/17] Add all cpus option to stop machine run

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Message-Id: <20080410132412.231F.KOSAKI.MOTOHIRO@jp.fujitsu.com>
Date:	Thu, 10 Apr 2008 13:26:02 +0900
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	kosaki.motohiro@...fujitsu.com,
	Alexey Dobriyan <adobriyan@...il.com>,
	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>,
	akpm@...ux-foundation.org, Ingo Molnar <mingo@...e.hu>,
	linux-kernel@...r.kernel.org,
	Rusty Russell <rusty@...tcorp.com.au>,
	Jason Baron <jbaron@...hat.com>, Adrian Bunk <bunk@...sta.de>,
	Christoph Hellwig <hch@...radead.org>, akpm@...l.org
Subject: Re: [patch 09/17] Add all cpus option to stop machine run

> > and will never be measured on real life workloads. Right now you
> > claim 1 (one) cacheline saving in schedule() which can be trivially
> 
> That is just an example. Once the infrastructure is in a lot more
> flags would move it into it. I think eventually most sysctls
> should be immediate values for once.

It seems very good viewpoint.
if sysctl value become immediate, I think some fastpath increase performance.


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