linux-kernel - Re: [tip:tracing/core] ring-buffer benchmark: Run producer/consumer threads at nice +19

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Message-Id: <1259074860.22249.1071.camel@gandalf.stny.rr.com>
Date:	Tue, 24 Nov 2009 10:01:00 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	mingo@...hat.com, hpa@...or.com, linux-kernel@...r.kernel.org,
	fweisbec@...il.com, a.p.zijlstra@...llo.nl, efault@....de,
	tglx@...utronix.de, linux-tip-commits@...r.kernel.org
Subject: Re: [tip:tracing/core] ring-buffer benchmark: Run
 producer/consumer threads at nice +19

On Tue, 2009-11-24 at 15:39 +0100, Ingo Molnar wrote:

> > This module is not made to be run all the time. I know you do it for 
> > testing. But running it at lowest priority kills the reason this 
> > module was made in the first place!
> 
> Well, it also found quite a few bugs in the ring-buffer code, beyond 
> benchmarking so i'd like to use it even without looking at the numbers.

OK, then lets make a module option (and command line) that will allow
the setting of the priority of the threads. Either nice or even fifo
(use at your own risk ;-)

I can write something up for that.

-- Steve


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