• Arnaldo Carvalho de Melo's avatar
    perf python scripting: Add futex-contention script · 00204c33
    Arnaldo Carvalho de Melo authored
    The equivalent to this SystemTAP script:
    
    http://sourceware.org/systemtap/wiki/WSFutexContention
    
    [root@doppio ~]# perf trace futex-contention
    Press control+C to stop and show the summary
    ^Cnpviewer.bin[15242] lock 7f0a8be19104 contended 29 times, 72806 avg ns
    npviewer.bin[15242] lock 7f0a8be19130 contended 2 times, 1355 avg ns
    synergyc[17245] lock f127f4 contended 1 times, 1830569 avg ns
    firefox[15116] lock 7f2b7238af0c contended 168 times, 1230390 avg ns
    synergyc[17245] lock f2fc20 contended 1 times, 33149 avg ns
    npviewer.bin[15255] lock 7f0a8be19074 contended 155 times, 73047 avg ns
    npviewer.bin[15255] lock 7f0a8be190a0 contended 127 times, 7088 avg ns
    synergyc[17247] lock f12854 contended 1 times, 46741 avg ns
    synergyc[17245] lock f12610 contended 1 times, 7358 avg ns
    [root@doppio ~]#
    
    Cc: Frederic Weisbecker <fweisbec@gmail.com>
    Cc: Mike Galbraith <efault@gmx.de>
    Cc: Paul Mackerras <paulus@samba.org>
    Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
    Cc: Stephane Eranian <eranian@google.com>
    Cc: Tom Zanussi <tzanussi@gmail.com>
    LKML-Reference: <new-submission>
    Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
    00204c33
Util.py 1.89 KB