linux-kernel - Re: [PATCH] process cputimer is moving faster than its corresponding clock

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Message-ID: <1367040666.12779.20.camel@Wailaba2>
Date:	Sat, 27 Apr 2013 01:31:06 -0400
From:	Olivier Langlois <olivier@...vierlanglois.net>
To:	KOSAKI Motohiro <kosaki.motohiro@...il.com>
Cc:	Frederic Weisbecker <fweisbec@...il.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>, schwidefsky@...ibm.com,
	Steven Rostedt <rostedt@...dmis.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] process cputimer is moving faster than its
 corresponding clock


> 
> 
> I did vary HZ from 300 to 1000 HZ, I tried the 3 three different
> preemption models.
> 
> With all these combinations, I still have the problem.
> 
Actually, I may have observed more failure with 1000 HZ and
CONFIG_PREEMPT=y (low-latency desktop)

Also make sure that High resolution timers support is enabled
(CONFIG_HIGH_RES_TIMERS).



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