linux-kernel - Re: [PATCHv4 0/8] perf, tool: Allow to use hw events in PMU syntax

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Date:	Wed, 10 Oct 2012 15:40:20 +0200
From:	Jiri Olsa <jolsa@...hat.com>
To:	Stephane Eranian <eranian@...gle.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Ingo Molnar <mingo@...e.hu>, Paul Mackerras <paulus@...ba.org>,
	Corey Ashford <cjashfor@...ux.vnet.ibm.com>,
	Frederic Weisbecker <fweisbec@...il.com>
Subject: Re: [PATCHv4 0/8] perf, tool: Allow to use hw events in PMU syntax

On Wed, Oct 10, 2012 at 03:34:53PM +0200, Stephane Eranian wrote:
> On Wed, Oct 10, 2012 at 2:53 PM, Jiri Olsa <jolsa@...hat.com> wrote:
> > hi,
> > here's the change to make following syntax available:
> >   perf stat -e cpu/event=instructions/u ls
> >   perf stat -e cpu/cycles/u ls
> >
> Unless, I am mistaken but I did not see in your patch where you adjust the list
> of generic Hw events (and encodings) you expose via sysfs based on CPU model
> number. Some generic HW PMU may not have actual physical mappings. Look
> at IvyBridge, for instance.

hm, path 2 remove any attribute that is not defined via x86_pmu.event_map,
if that's what you mean..

jirka
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