linux-kernel - Re: [-mm patch] sched remove lb

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Message-ID: <20061205154147.GA4865@elte.hu>
Date:	Tue, 5 Dec 2006 16:41:47 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	"Chen, Kenneth W" <kenneth.w.chen@...el.com>
Cc:	"Siddha, Suresh B" <suresh.b.siddha@...el.com>,
	'Andrew Morton' <akpm@...l.org>,
	'Christoph Lameter' <clameter@....com>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [-mm patch] sched remove lb_stopbalance counter


* Chen, Kenneth W <kenneth.w.chen@...el.com> wrote:

> > but, please:
> > 
> > > -#define SCHEDSTAT_VERSION 13
> > > +#define SCHEDSTAT_VERSION 12
> > 
> > change this to 14 instead. Versions should only go upwards, even if 
> > we revert to an earlier output format.
> 
> Really?  sched-decrease-number-of-load-balances.patch has not yet hit 
> the mainline and I think it's in -mm for only a couple of weeks.  I'm 
> trying to back out the change after brief reviewing the patch.

not a big issue but it costs nothing to go to version 14 - OTOH if any 
utility has been updated to version 13 and is forgotten about, it might 
break spuriously if we again go to 13 in the future.

	Ingo
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