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    Subject[PATCH 17/18] perf data ctf: Add '--all' option for 'perf data convert'
    Date
    From: Wang Nan <wangnan0@huawei.com>

    After this patch, 'perf data convert' convert comm events to output CTF
    stream.

    Result:

    # perf record -a sleep 1
    [ perf record: Woken up 1 times to write data ]
    [ perf record: Captured and wrote 0.378 MB perf.data (73 samples) ]

    # perf data convert --to-ctf ./out.ctf
    [ perf data convert: Converted 'perf.data' into CTF data './out.ctf' ]
    [ perf data convert: Converted and wrote 0.003 MB (73 samples) ]

    # babeltrace --clock-seconds ./out.ctf/
    [10627.402515791] (+?.?????????) cycles:ppp: { cpu_id = 0 }, { perf_ip = 0xFFFFFFFF81065AF4, perf_tid = 0, perf_pid = 0, perf_period = 1 }
    [10627.402518972] (+0.000003181) cycles:ppp: { cpu_id = 0 }, { perf_ip = 0xFFFFFFFF81065AF4, perf_tid = 0, perf_pid = 0, perf_period = 1 }
    ... // only sample event is converted

    # perf data convert --all --to-ctf ./out.ctf
    [ perf data convert: Converted 'perf.data' into CTF data './out.ctf' ]
    [ perf data convert: Converted and wrote 0.023 MB (73 samples, 384 non-samples) ]

    # babeltrace --clock-seconds ./out.ctf/
    [ 0.000000000] (+?.?????????) perf_comm: { cpu_id = 0 }, { pid = 1, tid = 1, comm = "init" }
    [ 0.000000000] (+0.000000000) perf_comm: { cpu_id = 0 }, { pid = 2, tid = 2, comm = "kthreadd" }
    [ 0.000000000] (+0.000000000) perf_comm: { cpu_id = 0 }, { pid = 3, tid = 3, comm = "ksoftirqd/0" }
    ... // comm events are converted
    [10627.402515791] (+10627.402515791) cycles:ppp: { cpu_id = 0 }, { perf_ip = 0xFFFFFFFF81065AF4, perf_tid = 0, perf_pid = 0, perf_period = 1 }
    [10627.402518972] (+0.000003181) cycles:ppp: { cpu_id = 0 }, { perf_ip = 0xFFFFFFFF81065AF4, perf_tid = 0, perf_pid = 0, perf_period = 1 }
    ... // samples are also converted

    Signed-off-by: Wang Nan <wangnan0@huawei.com>
    Acked-by: Jiri Olsa <jolsa@kernel.org>
    Cc: Zefan Li <lizefan@huawei.com>
    Cc: pi3orama@163.com
    Link: http://lkml.kernel.org/r/1466767332-114472-7-git-send-email-wangnan0@huawei.com
    Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
    ---
    tools/perf/Documentation/perf-data.txt | 4 ++++
    tools/perf/builtin-data.c | 1 +
    2 files changed, 5 insertions(+)

    diff --git a/tools/perf/Documentation/perf-data.txt b/tools/perf/Documentation/perf-data.txt
    index be8fa1a0a97e..f0796a47dfa3 100644
    --- a/tools/perf/Documentation/perf-data.txt
    +++ b/tools/perf/Documentation/perf-data.txt
    @@ -34,6 +34,10 @@ OPTIONS for 'convert'
    --verbose::
    Be more verbose (show counter open errors, etc).

    +--all::
    + Convert all events, including non-sample events (comm, fork, ...), to output.
    + Default is off, only convert samples.
    +
    SEE ALSO
    --------
    linkperf:perf[1]
    diff --git a/tools/perf/builtin-data.c b/tools/perf/builtin-data.c
    index ddfe3ac4c7f7..7ad6e17ac6b3 100644
    --- a/tools/perf/builtin-data.c
    +++ b/tools/perf/builtin-data.c
    @@ -65,6 +65,7 @@ static int cmd_data_convert(int argc, const char **argv,
    OPT_STRING(0, "to-ctf", &to_ctf, NULL, "Convert to CTF format"),
    #endif
    OPT_BOOLEAN('f', "force", &opts.force, "don't complain, do it"),
    + OPT_BOOLEAN(0, "all", &opts.all, "Convert all events"),
    OPT_END()
    };

    --
    2.7.4
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