linux-kernel - Re: vmstat: On demand vmstat workers V5

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Date:	Thu, 15 May 2014 01:15:17 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Christoph Lameter <cl@...ux.com>
cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Gilad Ben-Yossef <gilad@...yossef.com>,
	Tejun Heo <tj@...nel.org>, John Stultz <johnstul@...ibm.com>,
	Mike Frysinger <vapier@...too.org>,
	Minchan Kim <minchan.kim@...il.com>,
	Hakan Akkan <hakanakkan@...il.com>,
	Max Krasnyansky <maxk@...lcomm.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org, hughd@...gle.com,
	viresh.kumar@...aro.org, hpa@...or.com, mingo@...nel.org,
	peterz@...radead.org
Subject: Re: vmstat: On demand vmstat workers V5

On Wed, 14 May 2014, Christoph Lameter wrote:
> - Shepherd thread as a general worker thread. This means
>   that the general mechanism to control worker thread
>   cpu proposed by Frederic Weisbecker is necessary to
>   restrict the shepherd thread to the cpus not used
>   for low latency tasks. Hopefully that is ready to be
>   merged soon. No need anymore to have a specific
>   cpu be the housekeeper cpu.

Amen to that.

Acked-by me for the general approach.

I don't want to give any unqualified opinion on the mm/vmstat parts of
this patch.

Thanks,

	tglx


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