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| $ strace -c ls
% time seconds usecs/call calls errors syscall
------ ----------- ----------- --------- --------- ----------------
38.91 0.000789 22 35 13 openat
18.39 0.000373 15 24 close
17.55 0.000356 11 30 mmap
16.37 0.000332 14 23 fstat
2.86 0.000058 29 2 getdents64
2.66 0.000054 27 2 ioctl
2.22 0.000045 45 1 write
1.04 0.000021 21 1 futex
0.00 0.000000 0 12 read
0.00 0.000000 0 5 mprotect
0.00 0.000000 0 1 munmap
0.00 0.000000 0 3 brk
0.00 0.000000 0 2 pread64
0.00 0.000000 0 2 2 access
0.00 0.000000 0 1 execve
0.00 0.000000 0 2 1 statfs
0.00 0.000000 0 1 arch_prctl
0.00 0.000000 0 1 set_tid_address
0.00 0.000000 0 1 set_robust_list
0.00 0.000000 0 1 prlimit64
0.00 0.000000 0 1 getrandom
0.00 0.000000 0 1 rseq
------ ----------- ----------- --------- --------- ----------------
100.00 0.002028 13 152 16 total
|