linux-kernel - Re: [PATCH 20/41] perf tools: Let a user specify a PMU event without any config terms

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Message-ID: <20140716142510.GE9441@krava.redhat.com>
Date:	Wed, 16 Jul 2014 16:25:10 +0200
From:	Jiri Olsa <jolsa@...hat.com>
To:	Adrian Hunter <adrian.hunter@...el.com>
Cc:	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	linux-kernel@...r.kernel.org, David Ahern <dsahern@...il.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Namhyung Kim <namhyung@...il.com>,
	Paul Mackerras <paulus@...ba.org>,
	Stephane Eranian <eranian@...gle.com>
Subject: Re: [PATCH 20/41] perf tools: Let a user specify a PMU event without
 any config terms

On Mon, Jul 14, 2014 at 01:02:44PM +0300, Adrian Hunter wrote:
> This enables a PMU event to be specified in the form:
> 
> 	pmu//
> 
> which is effectively the same as:
> 
> 	pmu/config=0/
> 
> This patch is a precursor to defining
> default config for a PMU.

I understand the need for default config, but could you please elaborate
why do we want to parse 'pmu//' as an event string string?

thanks,
jirka
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