• Wang Nan's avatar
    perf data ctf: Add '--all' option for 'perf data convert' · 9e1a7ea1
    Wang Nan authored
    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: default avatarWang Nan <wangnan0@huawei.com>
    Acked-by: default avatarJiri 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.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
    9e1a7ea1
perf-data.txt 934 Bytes