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Date: Thu, 1 Sep 2011 13:24:46 -0400
From: Vince Weaver <vweaver1@eecs.utk.edu>
To: Peter Zijlstra <peterz@infradead.org>
CC: Mike Hommey <mh@glandium.org>, <linux-kernel@vger.kernel.org>
Subject: Re: Problem with perf hardware counters grouping
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On Thu, 1 Sep 2011, Vince Weaver wrote:

> 
> Does the perf tool work around this in some way?  

oh I see, the perf tool, at least when using perf -e stat on multiple 
events, opens each event individually.  PAPI uses group leaders which is 
why we see the issue.

Vince
vweaver1@eecs.utk.edu