drivers/staging/ktap/samples/syscalls/syscalls_count.kp

   1 #!/usr/bin/env ktap
   2
   3 s = ptable()
   4
   5 trace syscalls:sys_enter_* {
   6         s[argname] <<< 1
   7 }
   8
   9 trace_end {
  10         histogram(s)
  11 }
  12
  13 #Result:
  14 #
  15 #[root@jovi ktap]# ./ktap samples/syscalls_histogram.kp
  16 #^C
  17 #                          value ------------- Distribution ------------- count
  18 #        sys_enter_rt_sigprocmask |@@@@@@                                 326
  19 #                  sys_enter_read |@@@@@                                  287
  20 #                 sys_enter_close |@@@@                                   236
  21 #                  sys_enter_open |@@@@                                   222
  22 #                sys_enter_stat64 |@@                                     132
  23 #                sys_enter_select |@@                                     123
  24 #          sys_enter_rt_sigaction |@@                                     107
  25 #                  sys_enter_poll |@                                      72
  26 #                 sys_enter_write |@                                      70
  27 #            sys_enter_mmap_pgoff |@                                      58
  28 #               sys_enter_fstat64 |                                       41
  29 #             sys_enter_nanosleep |                                       23
  30 #                sys_enter_access |                                       20
  31 #              sys_enter_mprotect |                                       18
  32 #               sys_enter_geteuid |                                       17
  33 #               sys_enter_getegid |                                       16
  34 #                sys_enter_getuid |                                       16
  35 #                sys_enter_getgid |                                       16
  36 #                   sys_enter_brk |                                       15
  37 #               sys_enter_waitpid |                                       11
  38 #                  sys_enter_time |                                       10
  39 #                 sys_enter_ioctl |                                       9
  40 #                sys_enter_munmap |                                       9
  41 #               sys_enter_fcntl64 |                                       7
  42 #                  sys_enter_dup2 |                                       7
  43 #                 sys_enter_clone |                                       6
  44 #            sys_enter_exit_group |                                       6
  45 #                sys_enter_execve |                                       4
  46 #                  sys_enter_pipe |                                       3
  47 #          sys_enter_gettimeofday |                                       3
  48 #              sys_enter_getdents |                                       2
  49 #             sys_enter_getgroups |                                       2
  50 #              sys_enter_statfs64 |                                       2
  51 #                 sys_enter_lseek |                                       2
  52 #                sys_enter_openat |                                       1
  53 #              sys_enter_newuname |                                       1
  54