linux-kernel - Re: [PATCH 3/6] perf script: move printing of 'common' data from print

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Date:	Fri, 11 Mar 2011 01:28:15 +0100
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>
Cc:	Steven Rostedt <rostedt@...dmis.org>,
	David Ahern <daahern@...co.com>,
	linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org,
	mingo@...e.hu, peterz@...radead.org, paulus@...ba.org,
	tglx@...utronix.de
Subject: Re: [PATCH 3/6] perf script: move printing of 'common' data from
 print_event and rename

On Thu, Mar 10, 2011 at 12:51:09PM -0300, Arnaldo Carvalho de Melo wrote:
> Em Thu, Mar 10, 2011 at 10:20:53AM -0500, Steven Rostedt escreveu:
> > On Wed, Mar 09, 2011 at 10:23:25PM -0700, David Ahern wrote:
> > > This change does impact output: latency data is trace specific and is now
> > > printed after the common data - comm, tid, cpu, time and event name.
> 
> > > Signed-off-by: David Ahern <daahern@...co.com>
> 
> > >  tools/perf/builtin-script.c         |   38 ++++++++++++++++++++++-----
> > >  tools/perf/util/trace-event-parse.c |   49 +++++++---------------------------
> 
> > I was hoping after the next merge window to start making a common library
> > for parsing events. This way things like powertop and timechart or
> > anything that uses the perf interface does not need to write its own
> > parsing of events, or expect the event formats to be hardcoded.
> > 
> > The trace-event-parse.c was taking from trace-cmd's parse-events.c code
> > and hopefully the two can merge again. The parse-events.c code in
> > trace-cmd has gone through several iterations that has made it much more
> > robust and flexible. I purposely kept it as a separate libarary not
> > dependent on trace-cmd so that it could be used by other utilities like
> > perf.
> 
> David is kinda new to this perf/ftrace/trace-cmd/etc soap opera, and he
> has been patient to go thru the motions with Peter, Thomas, Frédéric and
> me, going from doing what he wants in 'perf report' to 'perf script',
> etc.
> 
> We're almost to the point where his feature is implemented in a
> way Frédéric, the one most actively reviewing his work, is satisfied,
> right Frédéric?

Yeah, nice work! Thanks David!

Acked-by: Frederic Weisbecker <fweisbec@...il.com>
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