linux-kernel - Re: [RFC][PATCH 13/19] perf: Per cpu-context rotation timer

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Message-ID: <1283954177.23762.24.camel@laptop>
Date:	Wed, 08 Sep 2010 15:56:17 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	paulus <paulus@...ba.org>,
	stephane eranian <eranian@...glemail.com>,
	Robert Richter <robert.richter@....com>,
	Will Deacon <will.deacon@....com>,
	Paul Mundt <lethal@...ux-sh.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Cyrill Gorcunov <gorcunov@...il.com>,
	Lin Ming <ming.m.lin@...el.com>,
	Yanmin <yanmin_zhang@...ux.intel.com>,
	Deng-Cheng Zhu <dengcheng.zhu@...il.com>,
	David Miller <davem@...emloft.net>,
	Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org,
	Corey Ashford <cjashfor@...ux.vnet.ibm.com>
Subject: Re: [RFC][PATCH 13/19] perf: Per cpu-context rotation timer

On Wed, 2010-09-08 at 15:50 +0200, Thomas Gleixner wrote:
> > Because some people (Corey) want to be able to have different rotation
> > periods per pmu driver, so a timer per context was the easy way out.
> 
> Makes sense. If you want it fully aligned with the tick, then you just
> might get the real tick time from the tick code and make it proper
> aligned. 

Right, I'll go see if I can make that work nicely.
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