1. 26 2月, 2015 4 次提交
    • I
      Merge tag 'perf-core-for-mingo' of... · 0afb1704
      Ingo Molnar 提交于
      Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core
      
      Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:
      
      New user selectable features:
      
        - Support recording running/enabled time in 'perf record' (Andi Kleen)
      
        - New tool: 'perf data' for converting perf.data to other formats,
          initially for the CTF (Common Trace Format) from LTTng (Jiri Olsa, Sebastian Siewior)
      
      User visible changes:
      
        - Only insert blank duration bracket when tracing syscalls in 'perf trace' (Arnaldo Carvalho de Melo)
      
        - Filter out the trace pid when no threads are specified in 'perf trace' (Arnaldo Carvalho de Melo)
      
        - Add 'perf trace' man page entry for --event (Arnaldo Carvalho de Melo)
      
        - Dump stack on segfaults in 'perf trace' (Arnaldo Carvalho de Melo)
      
      Infrastructure changes:
      
        - Introduce set_filter_pid and set_filter_pids methods in the evlist class (Arnaldo Carvalho de Melo)
      
        - Some perf_session untanglement patches, removing the need to pass a
          perf_session instance for things that are related to evlists, so that
          tools that don't deal with perf.data files like trace in live mode can
          make use of the ordered_events class (Arnaldo Carvalho de Melo)
      Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      Signed-off-by: NIngo Molnar <mingo@kernel.org>
      0afb1704
    • I
      e9e4e443
    • S
      perf data: Add a 'perf' prefix to the generic fields · 54cf776a
      Sebastian Andrzej Siewior 提交于
      Some of the tracers bring their own id or pid fields and we can end up
      having two of them. This patch adds a "perf_" prefix to the 'generic'
      fields so we avoid a clash of the member names.
      
      The change is visible in the babeltrace output:
      
      Before:
        $ babeltrace ./ctf-data/
        [03:19:13.962131936] (+0.000001935) cycles: { }, { ip = 0xFFFFFFFF8105443A, tid = 20714, pid = 20714, period = 8 }
        [03:19:13.962133732] (+0.000001796) cycles: { }, { ip = 0xFFFFFFFF8105443A, tid = 20714, pid = 20714, period = 114 }
        ...
      
      Now:
        $ babeltrace ./ctf-data/
        [03:19:13.962131936] (+0.000001935) cycles: { }, { perf_ip = 0xFFFFFFFF8105443A, perf_tid = 20714, perf_pid = 20714, perf_period = 8 }
        [03:19:13.962133732] (+0.000001796) cycles: { }, { perf_ip = 0xFFFFFFFF8105443A, perf_tid = 20714, perf_pid = 20714, perf_period = 114 }
        ...
      Signed-off-by: NSebastian Andrzej Siewior <bigeasy@linutronix.de>
      Acked-by: NNamhyung Kim <namhyung@kernel.org>
      Reviewed-by: NDavid Ahern <dsahern@gmail.com>
      Tested-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Jeremie Galarneau <jgalar@efficios.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Tom Zanussi <tzanussi@gmail.com>
      Cc: Wang Nan <wangnan0@huawei.com>
      Link: http://lkml.kernel.org/r/1424470628-5969-5-git-send-email-jolsa@kernel.orgSigned-off-by: NJiri Olsa <jolsa@kernel.org>
      Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      54cf776a
    • J
      perf data: Add perf data to CTF conversion support · edbe9817
      Jiri Olsa 提交于
      Adding 'perf data convert' to convert perf data file into different
      format. This patch adds support for CTF format conversion.
      
      To convert perf.data into CTF run:
        $ perf data convert --to-ctf=./ctf-data/
        [ perf data convert: Converted 'perf.data' into CTF data './ctf-data/' ]
        [ perf data convert: Converted and wrote 11.268 MB (100230 samples) ]
      
      The command will create CTF metadata out of perf.data file (or one
      specified via -i option) and then convert all sample events into single
      CTF stream.
      
      Each sample_type bit is translated into separated CTF event field apart
      from following exceptions:
      
        PERF_SAMPLE_RAW          - added in next patch
        PERF_SAMPLE_READ         - TODO
        PERF_SAMPLE_CALLCHAIN    - TODO
        PERF_SAMPLE_BRANCH_STACK - TODO
        PERF_SAMPLE_REGS_USER    - TODO
        PERF_SAMPLE_STACK_USER   - TODO
      
        $ perf --debug=data-convert=2 data convert ...
      
      The converted CTF data could be analyzed by CTF tools, like babletrace
      or tracecompass [1].
      
        $ babeltrace ./ctf-data/
        [03:19:13.962125533] (+?.?????????) cycles: { }, { ip = 0xFFFFFFFF8105443A, tid = 20714, pid = 20714, period = 1 }
        [03:19:13.962130001] (+0.000004468) cycles: { }, { ip = 0xFFFFFFFF8105443A, tid = 20714, pid = 20714, period = 1 }
        [03:19:13.962131936] (+0.000001935) cycles: { }, { ip = 0xFFFFFFFF8105443A, tid = 20714, pid = 20714, period = 8 }
        [03:19:13.962133732] (+0.000001796) cycles: { }, { ip = 0xFFFFFFFF8105443A, tid = 20714, pid = 20714, period = 114 }
        [03:19:13.962135557] (+0.000001825) cycles: { }, { ip = 0xFFFFFFFF8105443A, tid = 20714, pid = 20714, period = 2087 }
        [03:19:13.962137627] (+0.000002070) cycles: { }, { ip = 0xFFFFFFFF81361938, tid = 20714, pid = 20714, period = 37582 }
        [03:19:13.962161091] (+0.000023464) cycles: { }, { ip = 0xFFFFFFFF8124218F, tid = 20714, pid = 20714, period = 600246 }
        [03:19:13.962517569] (+0.000356478) cycles: { }, { ip = 0xFFFFFFFF811A75DB, tid = 20714, pid = 20714, period = 1325731 }
        [03:19:13.969518008] (+0.007000439) cycles: { }, { ip = 0x34080917B2, tid = 20714, pid = 20714, period = 1144298 }
      
      The following members to the ctf-environment were decided to be added to
      distinguish and specify perf CTF data:
      
        - domain
      
          It says "kernel" because it contains a kernel trace (not to be
          confused with a user space like lttng-ust does)
      
        - tracer_name
      
          It says perf. This can be used to distinguish between lttng and perf
          CTF based trace.
      
        - version
      
          The kernel version from stream. In addition to release, this is what
          it looks like on a Debian kernel:
      
            release = "3.14-1-amd64";
            version = "3.14.0";
      
      [1] http://projects.eclipse.org/projects/tools.tracecompassSigned-off-by: NJiri Olsa <jolsa@kernel.org>
      Acked-by: NNamhyung Kim <namhyung@kernel.org>
      Reviewed-by: NDavid Ahern <dsahern@gmail.com>
      Tested-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Jeremie Galarneau <jgalar@efficios.com>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
      Cc: Tom Zanussi <tzanussi@gmail.com>
      Cc: Wang Nan <wangnan0@huawei.com>
      Link: http://lkml.kernel.org/r/1424470628-5969-4-git-send-email-jolsa@kernel.orgSigned-off-by: NSebastian Andrzej Siewior <bigeasy@linutronix.de>
      Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      edbe9817
  2. 25 2月, 2015 6 次提交
  3. 23 2月, 2015 30 次提交
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