Tuesday, March 3, 2009

System calls analysys tool

strace -cp 18875

% time     seconds  usecs/call     calls    errors syscall
------ ----------- ----------- --------- --------- ----------------
 77.61    0.019695           0    782458       read
 12.31    0.003123           0      9456        write
  3.60    0.000913           0     47291        fcntl64
  3.32    0.000843           0      9463         open
  1.34    0.000341           0     18920        close
  1.27    0.000323           0     18914        dup2
  0.55    0.000140           0      9457         rt_sigprocmask
  0.00    0.000000           0         6           fstat64
  0.00    0.000000           0        12          getdents64
------ ----------- ----------- --------- --------- ----------------
100.00    0.025378                895977           total


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