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From: Christoph Lameter <cl@linux.com>
To: Max Krasnyansky <maxk@qti.qualcomm.com>
Cc: Viresh Kumar <viresh.kumar@linaro.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Gilad Ben-Yossef <gilad@benyossef.com>,
	Thomas Gleixner <tglx@linutronix.de>, Tejun Heo <tj@kernel.org>,
	John Stultz <johnstul@us.ibm.com>,
	Mike Frysinger <vapier@gentoo.org>,
	Minchan Kim <minchan.kim@gmail.com>,
	Hakan Akkan <hakanakkan@gmail.com>,
	Frederic Weisbecker <fweisbec@gmail.com>,
	"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	linux-mm@kvack.org
Subject: Re: vmstat: On demand vmstat workers V3
Date: Wed, 23 Apr 2014 14:54:21 -0500 (CDT)	[thread overview]
Message-ID: <alpine.DEB.2.10.1404231453410.16224@gentwo.org> (raw)
In-Reply-To: <5357EF4D.6080302@qti.qualcomm.com>

On Wed, 23 Apr 2014, Max Krasnyansky wrote:

> The updates are done via the regular priority workqueue.

Yup so things could be fixed at that level with setting an additional
workqueue flag?

> I'm playing with isolation as well (has been more or less a background thing
> for the last 6+ years). Our threads that run on the isolated cores are SCHED_FIFO
> and therefor low prio workqueue stuff, like vmstat, doesn't get in the way.
> I do have a few patches for the workqueues to make things better for isolation.

Would you share those with us please?

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  reply	other threads:[~2014-04-23 19:54 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-10-03 17:40 Christoph Lameter
2013-11-12 16:40 ` Christoph Lameter
2013-11-16 15:42 ` Frederic Weisbecker
2013-11-18 19:28   ` Christoph Lameter
2014-04-22 10:32 ` Viresh Kumar
2014-04-22 13:38   ` Christoph Lameter
2014-04-22 13:40     ` Viresh Kumar
2014-04-23 16:50   ` Max Krasnyansky
2014-04-23 19:54     ` Christoph Lameter [this message]
2014-04-24  3:59     ` Viresh Kumar

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