linux-kernel - Re: [PATCH -tip 0/4] perf script: add BTS analysis features

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Message-ID: <4E09F173.2060508@gmail.com>
Date:	Tue, 28 Jun 2011 09:21:23 -0600
From:	David Ahern <dsahern@...il.com>
To:	Akihiro Nagai <akihiro.nagai.hw@...achi.com>
CC:	Arnaldo Carvalho de Melo <acme@...radead.org>,
	Ingo Molnar <mingo@...e.hu>,
	Peter Zijlstra <peterz@...radead.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	linux-kernel@...r.kernel.org,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	pp-manager@....hitachi.co.jp
Subject: Re: [PATCH -tip  0/4] perf script: add BTS analysis features

On 06/28/2011 01:40 AM, Akihiro Nagai wrote:
> BTW, I couldn't run a script generated by 'perf script -g {pyton|perl}'
> with branch events. How do I make scripts analyzing branch events?
> 
> # perf record -e branches:u -c 1 -d ls
> # perf script -g python
> # perf script -s perf-script.py
>  in trace_begin
>    Fatal: no event_list!
> # perf script -g perl
> # perf script -s perf-script.pl
>    Fatal: no event_list!

Generated scripts currently only work on trace events. At this point it
is arguable that perf-script should be focused on the python and perl
scripts and the code for dumping the events should be moved to a new
command (perf-dump?).

David
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