linux-kernel - Re: [PATCH V3 3/7] workqueue: Add helpers to schedule work on any cpu

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Message-ID: <20130329175645.GB9862@htj.dyndns.org>
Date:	Fri, 29 Mar 2013 10:56:45 -0700
From:	Tejun Heo <tj@...nel.org>
To:	Viresh Kumar <viresh.kumar@...aro.org>
Cc:	pjt@...gle.com, paul.mckenney@...aro.org, tglx@...utronix.de,
	mingo@...hat.com, peterz@...radead.org, rostedt@...dmis.org,
	linaro-kernel@...ts.linaro.org, robin.randhawa@....com,
	Steve.Bannister@....com, Liviu.Dudau@....com,
	charles.garcia-tobin@....com, Arvind.Chauhan@....com,
	linux-rt-users@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V3 3/7] workqueue: Add helpers to schedule work on any cpu

On Fri, Mar 29, 2013 at 10:40:03AM -0700, Tejun Heo wrote:
> So the scheduler does know what it's doing after all, which is a nice
> news.  Given the result, the best thing to do would be somehow marking
> these workqueues as unbound for powersaving?

BTW, recent changes to workqueue means that it shouldn't be too
difficult to create a combined workqueue which distributes work items
to both per-cpu and unbound worker pools depending on cpu_idle(), but,
at least for now, I think we can make do with much coarser approach.
We can refine it afterwards.

Thanks.

-- 
tejun
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