linux-kernel - Re: [PATCH] perf script: Add stackcollapse.py script

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Message-ID: <39b49b28-120e-fe45-47ac-f77406c3a665@redhat.com>
Date:	Thu, 16 Jun 2016 11:26:36 +0200
From:	Paolo Bonzini <pbonzini@...hat.com>
To:	Jiri Olsa <jolsa@...hat.com>
Cc:	linux-kernel@...r.kernel.org, Jiri Olsa <jolsa@...nel.org>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Brendan Gregg <bgregg@...flix.com>
Subject: Re: [PATCH] perf script: Add stackcollapse.py script



On 16/06/2016 09:49, Jiri Olsa wrote:
> On Thu, Jun 16, 2016 at 09:22:59AM +0200, Paolo Bonzini wrote:
>> On 12/04/2016 15:26, Paolo Bonzini wrote:
>>> Add stackcollapse.py script as an example of parsing call chains, and
>>> also of using optparse to access command line options.
>>>
>>> The flame graph tools include a set of scripts that parse output from
>>> various tools (including "perf script"), remove the offsets in the
>>> function and collapse each stack to a single line.  The website also says
>>> "perf report could have a report style [...] that output folded stacks
>>> directly, obviating the need for stackcollapse-perf.pl", so here it is.
>>>
>>> This script is a Python rewrite of stackcollapse-perf.pl, using the perf
>>> scripting interface to access the perf data directly from Python.
>>>
>>> Cc: Jiri Olsa <jolsa@...nel.org>
>>> Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
>>> Cc: Brendan Gregg <bgregg@...flix.com>
>>> Signed-off-by: Paolo Bonzini <pbonzini@...hat.com>
>>> ---
>>>  tools/perf/scripts/python/bin/stackcollapse-record |   8 ++
>>>  tools/perf/scripts/python/bin/stackcollapse-report |   3 +
>>>  tools/perf/scripts/python/stackcollapse.py         | 127 +++++++++++++++++++++
>>>  3 files changed, 138 insertions(+)
>>>  create mode 100755 tools/perf/scripts/python/bin/stackcollapse-record
>>>  create mode 100755 tools/perf/scripts/python/bin/stackcollapse-report
>>>  create mode 100755 tools/perf/scripts/python/stackcollapse.py
>>
>> Ping^2?
> 
> sorry for delay.. I just answered the other email

No problem, thank you very much!

Paolo