linux-kernel - Re: 'global' rq->clock

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Message-ID: <20080503082849.GA29605@elte.hu>
Date:	Sat, 3 May 2008 10:28:50 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc:	David Miller <davem@...emloft.net>, efault@....de,
	elendil@...net.nl, parag.warudkar@...il.com,
	linux-kernel@...r.kernel.org, guichaz@...oo.fr, andi@...stfloor.org
Subject: Re: 'global' rq->clock


* Peter Zijlstra <a.p.zijlstra@...llo.nl> wrote:

> Yeah, I was thinking of a way for architectures to signify how much 
> help they need building the various clocks. Sparc, power and s390 
> would not need any help.

there's already such a mechanism in sched-devel.git (and has been there 
for a week or two): an architecture can set time_sync_thresh to -1LL 
during early bootup and essentially disable all the synchronization 
logic.

	Ingo
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