linux-kernel - Re: [PATCH 1/2] perf tools: Add a per tracepoint counter attribute to get raw sample

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Date:	Fri, 14 Aug 2009 02:13:30 +0200
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>
Cc:	Ingo Molnar <mingo@...e.hu>, LKML <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Mike Galbraith <efault@....de>
Subject: Re: [PATCH 1/2] perf tools: Add a per tracepoint counter attribute
	to get raw sample

On Thu, Aug 13, 2009 at 11:29:36AM -0300, Arnaldo Carvalho de Melo wrote:
> Em Thu, Aug 13, 2009 at 10:27:18AM +0200, Frederic Weisbecker escreveu:
> > Add a new flag field while opening a tracepoint perf counter:
> > 
> > 	-e tracepoint_subsystem:tracepoint_name:flags
> > 
> > This is intended to be generic although for now it only supports the
> > r[e[c[o[r[d]]]]] flag:
> > 
> > 	./perf record -e workqueue:workqueue_insertion:record
> > 	./perf record -e workqueue:workqueue_insertion:r
> > 
> > will have the same effect: enabling the raw samples record for the
> > given tracepoint counter.
> > 
> > In the future, we may want to support further flags, separated by
> > commas.
> 
> Will you at some point get those commit messages massaged into 'perf
> record --help'? :-)
> 
> - Arnaldo


Hehe, yeah, I will :-)

Oh BTW:

nobody@...here:~/linux/linux-2.6-tip/tools/perf/Documentation$ make
    SUBDIR ../
make[1]: « PERF-VERSION-FILE » est à jour.
    ASCIIDOC perf-annotate.html
    ASCIIDOC perf-examples.html
ERROR: perf-examples.txt: line 1: manpage document title is mandatory
WARNING: perf-examples.txt: line 8: missing [paradef-default] From an e-mail by Ingo Molnar-style entry
make: *** [perf-examples.html] Erreur 1


I've never touched an ascii doc thing. I'll soon put my hands into it.

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