-bash-3.2# lockstat -C sleep 5

Adaptive mutex spin: 261 events in 5.048 seconds (52 events/sec)

Count indv cuml rcnt     nsec Lock                   Caller
-------------------------------------------------------------------------------
  112  43%  43% 0.00     8025 0xffffff013e08da68     i915_driver_irq_handler+0x15e
   98  38%  80% 0.00     4450 pidlock                sigqkill+0x131
   11   4%  85% 0.00    67308 0xffffff015fa35398     auclnt_get_samples+0x26
   10   4%  89% 0.00     3222 flock_lock             flk_get_lock_graph+0x96
    3   1%  90% 0.00     4292 0xffffff0161c55400     reclock+0x35f
    3   1%  91% 0.00     1747 0xffffff0139dd2600     callout_list_expire+0x87
    3   1%  92% 0.00    23964 0xffffff0139dd2540     callout_realtime+0x16
    2   1%  93% 0.00      950 0xffffff013d10a800     taskq_d_thread+0xcf
    2   1%  93% 0.00     1651 0xffffff013b08c900     trap+0x1333
    2   1%  94% 0.00    15772 0xffffff0139dd26c0     callout_realtime+0x16
    2   1%  95% 0.00      729 0xffffff0139dd26c0     untimeout_generic+0x59
    2   1%  96% 0.00     5283 0xffffff0139dd2540     callout_list_expire+0x87
    2   1%  97% 0.00      569 0xffffff0139dd2540     untimeout_generic+0x59
    1   0%  97% 0.00      556 0xffffff015eef1298     strrput+0x1af
    1   0%  97% 0.00    13243 0xffffff015eef1298     putnext+0x70
    1   0%  98% 0.00    16933 0xffffff01552b1690     pollwakeup+0x1cb
    1   0%  98% 0.00      566 0xffffff013afe1028     taskq_thread+0x1db
    1   0%  98% 0.00      962 0xffffff013b08c900     clock_tick_process+0xd1
    1   0%  99% 0.00    18071 0xffffff013d10a800     taskq_bucket_dispatch+0x31
    1   0%  99% 0.00     2848 0xffffff0139dd2600     timeout_generic+0x83
    1   0% 100% 0.00     4777 0xffffff0139dd2600     untimeout_generic+0x59
    1   0% 100% 0.00      968 0xffffff0139dd2600     callout_execute+0x16
-------------------------------------------------------------------------------

Adaptive mutex block: 116 events in 5.048 seconds (23 events/sec)

Count indv cuml rcnt     nsec Lock                   Caller
-------------------------------------------------------------------------------
  107  92%  92% 0.00     6538 0xffffff013e08da68     i915_driver_irq_handler+0x15e
    3   3%  95% 0.00    10402 0xffffff0139dd2540     callout_realtime+0x16
    2   2%  97% 0.00     7750 0xffffff0139dd26c0     callout_realtime+0x16
    1   1%  97% 0.00    12812 pidlock                sigqkill+0x131
    1   1%  98% 0.00   135614 0xffffff015eef1298     putnext+0x70
    1   1%  99% 0.00    11128 0xffffff01552b1690     pollwakeup+0x1cb
    1   1% 100% 0.00     8537 0xffffff013d10a800     taskq_bucket_dispatch+0x31
-------------------------------------------------------------------------------

Spin lock spin: 78 events in 5.048 seconds (15 events/sec)

Count indv cuml rcnt     nsec Lock                   Caller
-------------------------------------------------------------------------------
   27  35%  35% 0.00     3276 0xffffff013f3a8858     disp_lock_enter+0x2e
   26  33%  68% 0.00     1068 cpu0_disp              disp_lock_enter+0x2e
   14  18%  86% 0.00     1351 cpu0_disp              disp_lock_enter_high+0x15
   11  14% 100% 0.00     1365 0xffffff013f3a8858     disp_lock_enter_high+0x15
-------------------------------------------------------------------------------

Thread lock spin: 4 events in 5.048 seconds (1 events/sec)

Count indv cuml rcnt     nsec Lock                   Caller
-------------------------------------------------------------------------------
    2  50%  50% 0.00      211 transition_lock        ts_tick+0x29
    1  25%  75% 0.00      216 cpu[1]+0xe8            ts_tick+0x29
    1  25% 100% 0.00      497 cpu[1]+0xe8            preempt+0x42
-------------------------------------------------------------------------------