linux-kernel - Re: [PATCH 00/12] perf trace: Python scripting support

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Message-Id: <1266702715.6977.13.camel@tropicana>
Date:	Sat, 20 Feb 2010 15:51:55 -0600
From:	Tom Zanussi <tzanussi@...il.com>
To:	Frederic Weisbecker <fweisbec@...il.com>
Cc:	linux-kernel@...r.kernel.org, mingo@...e.hu, rostedt@...dmis.org,
	k-keiichi@...jp.nec.com, Peter Zijlstra <peterz@...radead.org>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Paul Mackerras <paulus@...ba.org>,
	Li Zefan <lizf@...fujitsu.com>,
	Lai Jiangshan <laijs@...fujitsu.com>
Subject: Re: [PATCH 00/12] perf trace: Python scripting support

On Fri, 2010-02-19 at 22:37 +0100, Frederic Weisbecker wrote:
> On Wed, Jan 27, 2010 at 02:27:51AM -0600, Tom Zanussi wrote:
> > This patchset adds a Python scripting engine to perf trace.  In the
> > process, it also creates a scripting-engines directory under perf/util
> > and moves the existing Perl support there, to avoid cluttering the
> > main perf/util directory with scripting support files.
> > 
> > It also includes some minor bugfixes and adds Documentation for the
> > Python support, which includes a step-by-step example detailing how to
> > write a new trace stream processing script using Python.
> > 
> > Finally, it adds several new scripts, all dealing with aggregation of
> > system call trace data.  To make those scripts more user-friendly, it
> > adds a couple patches that export some of the syscall metadata, enough
> > to allow syscall names rather than raw numbers to be printed in the
> > output.
> 
> 
> Sorry to answer that late.
> 
> This looks very nice! And seeing how you made it easy to plug
> new languages, and how easy it is to write trace report scripts,
> this looks like a cool new step for the tracing over perf tools.
> 
> Focusing on scripts to post-process the tracing will certainly
> accelerate the movement in this area.
> 
> I've looked at some patches in the set, this looks good at
> a first glance. I'll review it in detail and test it, and
> then apply/push it if I don't encounter problems.
> 

No problem, thanks for reviewing them!

They've been working fine for me - playing with the Python support over
the past few weeks, I haven't seen any problems, but there's one other
patch that came up later that you might also want to take a look, with
the title [PATCH] perf record: filter out perf process tracepoint
events.  Here's a link to that patch, in case you've lost track of it:

http://patchwork.kernel.org/patch/76042/

Thanks,

Tom

> Thanks a lot!
> 

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