• Tom Zanussi's avatar
    perf trace/scripting: List available scripts · 4b9c0c59
    Tom Zanussi authored
    Lists the available perf trace scripts, one per line e.g.:
    
    root@tropicana:~# perf trace -l
    List of available trace scripts:
      workqueue-stats                      workqueue stats (ins/exe/create/destroy)
      wakeup-latency                       system-wide min/max/avg wakeup latency
      rw-by-file <comm>                    r/w activity for a program, by file
      check-perf-trace                     useless but exhaustive test script
      rw-by-pid                            system-wide r/w activity
    
    To be consistent with the other listing options in perf, the
    current latency trace option was changed to '-L', and '-l' is
    now used to access the script listing as:
    
    To create the list, it searches each scripts/*/bin directory for
    files ending with "-report" and reads information found in
    certain comment lines contained in those shell scripts:
    
      - if the comment line starts with "description:", the rest of the
        line is used as a 'half-line' description.  To keep each line in
        the list to a single line, the description should be limited to 40
        characters (the rest of the line contains the script name and
        args)
    
      - if the comment line starts with "args:", the rest of the line
        names the args the script supports.  Required args should be
        surrounded by <> brackets, optional args by [] brackets.
    
    The current scripts in scripts/perl/bin have also been updated
    with description: and args: comments.
    Signed-off-by: default avatarTom Zanussi <tzanussi@gmail.com>
    Cc: fweisbec@gmail.com
    Cc: rostedt@goodmis.org
    LKML-Reference: <1260867220-15699-5-git-send-email-tzanussi@gmail.com>
    Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
    4b9c0c59
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