From: Paolo Bonzini <pbonzini@redhat.com>
To: Brendan Gregg <bgregg@netflix.com>, Namhyung Kim <namhyung@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>,
Ingo Molnar <mingo@kernel.org>,
linux-kernel@vger.kernel.org,
Adrian Hunter <adrian.hunter@intel.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Alexei Starovoitov <ast@kernel.org>,
Andi Kleen <ak@linux.intel.com>, David Ahern <dsahern@gmail.com>,
Ekaterina Tumanova <tumanova@linux.vnet.ibm.com>,
He Kuang <hekuang@huawei.com>, Jean Delvare <jdelvare@suse.de>,
Jiri Olsa <jolsa@redhat.com>,
Josh Poimboeuf <jpoimboe@redhat.com>,
Kan Liang <kan.liang@intel.com>,
linux-kbuild@vger.kernel.org,
Masami Hiramatsu <mhiramat@kernel.org>,
Michal Marek <mmarek@suse.com>, Pekka Enberg <penberg@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
pi3orama@163.com, Stephane Eranian <eranian@google.com>,
Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>,
Wang Nan <wangnan0@huawei.com>, Zefan Li <lizefan@huawei.com>,
Arnaldo Carvalho de Melo <acme@redhat.com>
Subject: Re: [GIT PULL 00/10] perf/core improvements and fixes
Date: Tue, 21 Jun 2016 12:08:47 +0200 [thread overview]
Message-ID: <2c189c43-81e8-4052-c62c-3b548b3eb32a@redhat.com> (raw)
In-Reply-To: <CAJN39oiGpcfx85xpzCX7hB+4a+wWtNZLxLBs9Mmr8QgDPP=q7w@mail.gmail.com>
On 21/06/2016 05:11, Brendan Gregg wrote:
>>> > > - Add stackcollapse.py script to help generating flame graphs (Paolo Bonzini)
>> >
>> > I think this is already done by '-g folded'. Please see:
>> >
>> > http://www.brendangregg.com/blog/2016-04-30/linux-perf-folded.html
>> >
> Pretty much. Two similar solutions were developed around the same
> time. Although I have to use some awk to get "perf -g folded" in the
> exact right format, and stackcollapse-perf.py does that directly.
Yes, the idea for stackcollapse-perf.py was:
- to do everything directly and emit "the right" format for the
flamegraph tools. This however is a very minimal output, and it's not
necessarily the best for perf in general.
- to provide an example of visiting callgraphs from the scripting
interface, since it's not really documented. From the commit message:
"Add stackcollapse.py script as an example of parsing call chains, and
also of using optparse to access command line options".
Paolo
next prev parent reply other threads:[~2016-06-21 10:18 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-20 22:23 Arnaldo Carvalho de Melo
2016-06-20 22:23 ` [PATCH 01/10] perf tools: Find vdso with the consider of cross-platform Arnaldo Carvalho de Melo
2016-06-20 22:23 ` [PATCH 02/10] kbuild: List libelf-devel as an alternative Arnaldo Carvalho de Melo
2016-06-20 22:23 ` [PATCH 03/10] perf script: Fix documentation of '-f' when it should be '-F' Arnaldo Carvalho de Melo
2016-06-20 22:23 ` [PATCH 04/10] perf hists: Rename __hists__add_entry to hists__add_entry Arnaldo Carvalho de Melo
2016-06-20 22:23 ` [PATCH 05/10] perf tools: Remove some unused functions Arnaldo Carvalho de Melo
2016-06-20 22:23 ` [PATCH 06/10] perf tools: Remove --perf-dir and --work-dir Arnaldo Carvalho de Melo
2016-06-20 22:23 ` [PATCH 07/10] perf llvm: Allow dump llvm output object file using llvm.dump-obj Arnaldo Carvalho de Melo
2016-06-20 22:23 ` [PATCH 08/10] perf record: Add --dry-run option to check cmdline options Arnaldo Carvalho de Melo
2016-06-20 22:23 ` [PATCH 09/10] perf evsel: Fix write_backwards fallback Arnaldo Carvalho de Melo
2016-06-20 22:23 ` [PATCH 10/10] perf script: Add stackcollapse.py script Arnaldo Carvalho de Melo
2016-06-21 18:36 ` Brendan Gregg
2016-06-21 20:19 ` Arnaldo Carvalho de Melo
2016-06-21 2:18 ` [GIT PULL 00/10] perf/core improvements and fixes Namhyung Kim
2016-06-21 3:11 ` Brendan Gregg
2016-06-21 10:08 ` Paolo Bonzini [this message]
2016-06-21 16:14 ` Arnaldo Carvalho de Melo
-- strict thread matches above, loose matches on Subject: below --
2017-08-16 20:20 Arnaldo Carvalho de Melo
2017-08-17 7:45 ` Ingo Molnar
2017-05-03 13:58 Arnaldo Carvalho de Melo
2017-05-03 17:30 ` Ingo Molnar
2017-01-17 16:06 Arnaldo Carvalho de Melo
2017-01-18 9:09 ` Ingo Molnar
2016-12-07 16:53 Arnaldo Carvalho de Melo
2016-12-07 18:17 ` Ingo Molnar
2016-05-25 21:34 Arnaldo Carvalho de Melo
2016-04-01 21:56 Arnaldo Carvalho de Melo
2016-04-06 6:47 ` Ingo Molnar
2016-02-16 20:34 Arnaldo Carvalho de Melo
2016-02-17 7:39 ` Ingo Molnar
2015-11-28 1:22 Arnaldo Carvalho de Melo
2015-11-28 9:50 ` Ingo Molnar
2015-11-29 13:16 ` Namhyung Kim
2015-08-28 18:06 Arnaldo Carvalho de Melo
2015-08-31 8:28 ` Ingo Molnar
2015-07-30 16:16 Arnaldo Carvalho de Melo
2015-07-31 8:04 ` Ingo Molnar
2015-07-31 13:30 ` Arnaldo Carvalho de Melo
2015-06-16 18:21 Arnaldo Carvalho de Melo
2015-01-29 20:23 Arnaldo Carvalho de Melo
2015-01-30 18:28 ` Ingo Molnar
2014-12-22 15:29 Arnaldo Carvalho de Melo
2014-09-26 20:19 Arnaldo Carvalho de Melo
2014-09-27 7:20 ` Ingo Molnar
2014-04-08 18:00 Jiri Olsa
[not found] ` <8738hnk3dg.fsf@tassilo.jf.intel.com>
[not found] ` <CAM9d7ciP4tLUmR-soEKH3nf6=XC5evKGfuQW1fUGA8Z42U3xCg@mail.gmail.com>
2014-04-09 5:31 ` Ingo Molnar
2013-11-14 20:25 Arnaldo Carvalho de Melo
2013-11-15 6:38 ` Ingo Molnar
2013-11-11 20:22 Arnaldo Carvalho de Melo
2013-11-05 20:09 Arnaldo Carvalho de Melo
2013-11-06 5:31 ` Ingo Molnar
2013-09-02 20:56 Arnaldo Carvalho de Melo
2013-09-03 5:49 ` Ingo Molnar
2013-02-14 21:44 Arnaldo Carvalho de Melo
2013-02-15 15:39 ` Ingo Molnar
2011-12-20 19:18 Arnaldo Carvalho de Melo
2011-12-20 19:33 ` Ingo Molnar
2010-08-06 1:46 Arnaldo Carvalho de Melo
2010-08-06 7:00 ` Ingo Molnar
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