linux-kernel - Re: [PATCH] nohz1: Documentation

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Message-ID: <0000013d9289cebc-e6380265-3a74-4343-b851-765f785a3754-000000@email.amazonses.com>
Date:	Fri, 22 Mar 2013 14:38:58 +0000
From:	Christoph Lameter <cl@...ux.com>
To:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
cc:	Steven Rostedt <rostedt@...dmis.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Rob Landley <rob@...dley.net>, linux-kernel@...r.kernel.org,
	josh@...htriplett.org, zhong@...ux.vnet.ibm.com,
	khilman@...aro.org, geoff@...radead.org, tglx@...utronix.de
Subject: Re: [PATCH] nohz1: Documentation

On Thu, 21 Mar 2013, Paul E. McKenney wrote:

> So, how long of busy periods are you contemplating for your SCHED_FIFO
> threads?  Is it possible to tune/adjust the offending per-CPU ktheads
> to wake up less frequently than that time?

Test programs right now run 10 seconds. 30 seconds would definitely be
enough for the worst case.

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