linux-kernel - Re: [PATCH v2 00/10] optimize freezing tasks by reducing task wakeups

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Message-ID: <8514381.qPm240gC5h@vostro.rjw.lan>
Date:	Wed, 08 May 2013 02:02:24 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Tejun Heo <tj@...nel.org>, Colin Cross <ccross@...roid.com>
Cc:	linux-kernel@...r.kernel.org, Pavel Machek <pavel@....cz>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Mandeep Singh Baines <msb@...omium.org>,
	Oleg Nesterov <oleg@...hat.com>, linux-nfs@...r.kernel.org,
	linux-pm@...r.kernel.org, netdev@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH v2 00/10] optimize freezing tasks by reducing task wakeups

On Tuesday, May 07, 2013 11:12:37 AM Tejun Heo wrote:
> Hello,
> 
> On Mon, May 06, 2013 at 04:50:05PM -0700, Colin Cross wrote:
> > On slow cpus the large number of task wakeups and context switches
> > triggered by freezing and thawing tasks can take a significant amount
> > of cpu time.  This patch series reduces the amount of work done during
> > freezing tasks by avoiding waking up tasks that are already in a freezable
> > state.
> 
> For the whole series,
> 
>  Acked-by: Tejun Heo <tj@...nel.org>
> 
> Thanks a lot!

All 16 patches queued up as v3.11 material.

Many thanks to everyone involved,
Rafael


-- 
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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