% time     seconds  usecs/call     calls    errors syscall
------ ----------- ----------- --------- --------- ----------------
 90.16    0.883947          22     38704      1158 futex
  9.82    0.096238         176       546           madvise
  0.01    0.000124           8        15           mprotect
  0.00    0.000037           3        10           mmap
  0.00    0.000030           0        32           getcpu
------ ----------- ----------- --------- --------- ----------------
100.00    0.980376          24     39307      1158 total