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

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Message-ID: <4E0C073F.5020901@hitachi.com>
Date:	Thu, 30 Jun 2011 14:18:55 +0900
From:	Akihiro Nagai <akihiro.nagai.hw@...achi.com>
To:	David Ahern <dsahern@...il.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>,
	yrl.pp-manager.tt@...achi.com
Subject: Re: [PATCH -tip  0/4] perf script: add BTS analysis features

(2011/06/29 0:21), David Ahern wrote:
> 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?).
I see. Thank you for your information.
I'd like to try adding the function to deal with HW-events with perf-script.

I like perf-dump idea. It makes easier to specialize output format
based on each event type.

Thank you.
>
> David
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