linux-kernel - Re: [RFC][PATCH v2 11/11] perf top: demo of how to use the sysfs interface

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Message-ID: <1274386126.1674.1637.camel@laptop>
Date:	Thu, 20 May 2010 22:08:46 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Corey Ashford <cjashfor@...ux.vnet.ibm.com>
Cc:	Lin Ming <ming.m.lin@...el.com>, Ingo Molnar <mingo@...e.hu>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Paul Mundt <lethal@...ux-sh.org>,
	"eranian@...il.com" <eranian@...il.com>,
	"Gary.Mohr@...l.com" <Gary.Mohr@...l.com>,
	"arjan@...ux.intel.com" <arjan@...ux.intel.com>,
	"Zhang, Yanmin" <yanmin_zhang@...ux.intel.com>,
	Paul Mackerras <paulus@...ba.org>,
	"David S. Miller" <davem@...emloft.net>,
	Russell King <rmk+kernel@....linux.org.uk>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Will Deacon <will.deacon@....com>,
	Maynard Johnson <mpjohn@...ibm.com>,
	Carl Love <carll@...ibm.com>,
	"greg@...ah.com" <greg@...ah.com>,
	Kay Sievers <kay.sievers@...y.org>,
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: [RFC][PATCH v2 11/11] perf top: demo of how to use the sysfs
 interface

On Wed, 2010-05-19 at 18:33 -0700, Corey Ashford wrote:
> 
> We also need to take into account event "attributes" - other data that
> is needed to configure a specific event.  For example, think about a
> memory controller which has a PMU can count events in a particular
> memory range; we need to be able to supply the memory range somehow, 

That's that perf_event_attr is for.

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