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

From: Akihiro Nagai
Date: Thu Jun 30 2011 - 01:19:41 EST


(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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