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

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Message-ID: <20090813142936.GG3495@ghostprotocols.net>
Date:	Thu, 13 Aug 2009 11:29:36 -0300
From:	Arnaldo Carvalho de Melo <acme@...hat.com>
To:	Frederic Weisbecker <fweisbec@...il.com>
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

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
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