bcc func* tools examples - majianpeng/majianpeng.github.io GitHub Wiki

funclatency -p ‘pidof ceph-osd` pthread:*pthread_cond_broadcast

Tracing 2 functions for “pthread:pthread_cond_broadcast”… Hit Ctrl-C to end.

nsecs               : count     distribution
    0 -> 1          : 0        |                                        |
    2 -> 3          : 0        |                                        |
    4 -> 7          : 0        |                                        |
    8 -> 15         : 0        |                                        |
   16 -> 31         : 0        |                                        |
   32 -> 63         : 0        |                                        |
   64 -> 127        : 0        |                                        |
  128 -> 255        : 0        |                                        |
  256 -> 511        : 0        |                                        |
  512 -> 1023       : 0        |                                        |
 1024 -> 2047       : 0        |                                        |
 2048 -> 4095       : 34258    |**********                              |
 4096 -> 8191       : 60806    |******************                      |
 8192 -> 16383      : 129266   |****************************************|
16384 -> 32767      : 771      |                                        |
32768 -> 65535      : 3        |                                        |

avg = 7123 nsecs, total: 1604212003 nsecs, count: 225210

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