linux-kernel - Re: Inconsistent load average on tickless kernels

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Message-ID: <1335212466.2463.85.camel@laptop>
Date:	Mon, 23 Apr 2012 22:21:06 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Jonathan Nieder <jrnieder@...il.com>
Cc:	Lesław Kopeć <leslaw.kopec@...za-klasa.pl>,
	Aman Gupta <aman@...1.net>, linux-kernel@...r.kernel.org,
	Chase Douglas <chase.douglas@...onical.com>,
	Damien Wyart <damien.wyart@...e.fr>,
	Kyle McMartin <kyle@...hat.com>,
	Venkatesh Pallipadi <venki@...gle.com>,
	Doug Smythies <dsmythies@...us.net>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: Inconsistent load average on tickless kernels

On Mon, 2012-04-23 at 12:57 -0500, Jonathan Nieder wrote:
> Lesław Kopeć wrote:
> 
> > 2.6.32.55-hz-0f004f5a69			9.88
> > 2.6.32.55-no-hz-74f5187ac8		2.48
> > 2.6.32.55-no-hz-c308b56b53		2.22
> > 3.0.28-hz				10.66
> > 3.0.28-no-hz				0.60
> > 3.0.28-no-hz-c308b56b53			4.09
> > 3.0.28-no-hz-c308b56b53 nohz=off	6.78
> > 3.2.12-hz				10.16
> > 3.2.12-no-hz				0.66
> > 3.2.12-no-hz-c308b56b53			4.36
> >
> > What's worth noting is that I haven't seen any nasty side effects of the
> > latest patch on all kernel versions that I've tested. Hope that helps.
> 
> Ok.
> 
> Peter, do you think it would make sense to add c308b56b53987 to 3.0.y
> and newer stable kernels?

If anybody is still maintaining those and cares enough to do the work,
sure whatever.. ;)

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