linux-kernel - [PATCH v2 0/7] perf ctf: Convert comm, fork and exit events to CTF

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Date:	Fri, 24 Jun 2016 11:22:05 +0000
From:	Wang Nan <wangnan0@...wei.com>
To:	<acme@...nel.org>, <jolsa@...hat.com>
CC:	<linux-kernel@...r.kernel.org>, <pi3orama@....com>,
	<lizefan@...wei.com>, Wang Nan <wangnan0@...wei.com>
Subject: [PATCH v2 0/7] perf ctf: Convert comm, fork and exit events to CTF

After converting perf.data to CTF, we lost pid-tid-comm mapping. Which
makes inconvience. For example, in perf script output we know which
process issue an event like this:

 compiz 19361 [001] 3275709.313929:  raw_syscalls:sys_exit: NR 7 = 0

After converting to CTF, we only get this:

  [3275709.313929985] (+0.110646118) raw_syscalls:sys_exit: { cpu_id = 1 }, { perf_ip = 0xFFFFFFFF8107B2E8, perf_tid = 19361, perf_pid = 19361, perf_id = 18920, perf_period = 1, common_type = 16, common_flags = 0, common_preempt_count = 1, common_pid = 19361, id = 7, ret = 0 }

Currently, if we want to find the name and parent of a process, we
have to collect 'sched:sched_switch' event.

This patch set adds a '--all' option to 'perf convert', converts comm,
fork and exit events to CTF output. CTF user now can track the mapping
by their own.

v1 -> v2: Report number of sample and non-sample events when finish.
          rename opts.non_sample to opts.all.

Wang Nan (7):
  perf ctf: Add value_set_string() helper
  perf ctf: Pass convert options through opts structure
  perf ctf: Add 'all' option
  perf ctf: Prepare collect non-sample events
  perf ctf: Generate comm event to CTF output
  perf ctf: Add '--all' option for 'perf data convert'
  perf ctf: Generate fork and exit events to CTF output

 tools/perf/Documentation/perf-data.txt |   4 +
 tools/perf/builtin-data.c              |  11 +-
 tools/perf/util/data-convert-bt.c      | 195 ++++++++++++++++++++++++++++++++-
 tools/perf/util/data-convert-bt.h      |   4 +-
 tools/perf/util/data-convert.h         |   9 ++
 5 files changed, 216 insertions(+), 7 deletions(-)
 create mode 100644 tools/perf/util/data-convert.h

-- 
1.8.3.4