linux-kernel - Re: [PATCH 1/2] perf tools: add event modifier to request exclusive PMU access

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Message-ID: <20121019154610.GX2095@tassilo.jf.intel.com>
Date:	Fri, 19 Oct 2012 08:46:10 -0700
From:	Andi Kleen <ak@...ux.intel.com>
To:	Stephane Eranian <eranian@...gle.com>
Cc:	Peter Zijlstra <peterz@...radead.org>,
	LKML <linux-kernel@...r.kernel.org>,
	"mingo@...e.hu" <mingo@...e.hu>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Jiri Olsa <jolsa@...hat.com>
Subject: Re: [PATCH 1/2] perf tools: add event modifier to request exclusive
 PMU access

> That's what I thought too, but then I don't understand why it was at
> eight before and not
> seven: One instance of each letter, + a second for pp (precise=2). Or
> am I missing
> something here?

The number is pretty useless imho (it's unlikely to catch any real user error) 
and most likely generates a much longer automata in flex than just a +
So I would drop it.

-Andi

-- 
ak@...ux.intel.com -- Speaking for myself only
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