mass% sudo dtruss -eaf -p 12568 PID/THRD RELATIVE ELAPSD CPU SYSCALL(args) = return 12568/0x1b5c6: 3087 533 77 workq_kernreturn(0x1, 0x4004844, 0x0) = 0 0 12568/0x1bc1f: 28 9 0 thread_selfid(0x0, 0x0, 0x0) = 113695 0 12568/0x1b5c6: 3117 247 20 kevent(0x4, 0x0, 0x0) = 1 0 12568/0x1bc1f: 156 49 10 kevent(0x4, 0xB0184DDC, 0x1) = 1 0 12568/0x1bc1f: 173 449 3 __disable_threadsignal(0x1, 0x0, 0x0) = 0 0 12568/0x1b5c6: 3252 899 18 kevent(0x4, 0x0, 0x0) = 1 0 12568/0x1b5c6: 3131 62999132 10 kevent(0x4, 0x0, 0x0) = 0 0 12568/0x1b5c6: 3227 538 85 workq_kernreturn(0x1, 0x4004860, 0x0) = 0 0 12568/0x1bc6f: 60 10 0 thread_selfid(0x0, 0x0, 0x0) = 113775 0 12568/0x1bc6f: 186 28 11 kevent(0x4, 0xB0184DDC, 0x1) = 1 0 12568/0x1bc6f: 204 453 3 __disable_threadsignal(0x1, 0x0, 0x0) = 0 0 12568/0x1bcf4: 29 448 2 thread_selfid(0x0, 0x0, 0x0) = 113908 0 12568/0x1bcf4: 138 13 6 kevent(0x4, 0xB0184DDC, 0x1) = 1 0 12568/0x1b5c6: 3271 62998919 15 kevent(0x4, 0x0, 0x0) = 0 0 12568/0x1b5c6: 3373 540 93 workq_kernreturn(0x1, 0x400487C, 0x0) = 0 0 12568/0x1b5c6: 3398 608 19 kevent(0x4, 0x0, 0x0) = 1 0 12568/0x1bcf4: 158 447 0 __disable_threadsignal(0x1, 0x0, 0x0) = 0 0 12568/0x1b5c9: 1530 407 1 gettimeofday(0xB0206E58, 0x0, 0x0) = 1272857054 0 12568/0x1b5c6: 3410 62998345 8 kevent(0x4, 0x0, 0x0) = 0 0 12568/0x1b5c6: 3479 504 59 workq_kernreturn(0x1, 0x4004898, 0x0) = 0 0 12568/0x1bd5f: 29 9 0 thread_selfid(0x0, 0x0, 0x0) = 114015 0 12568/0x1bd5f: 140 12 6 kevent(0x4, 0xB0184DDC, 0x1) = 1 0 12568/0x1b5c6: 3504 197 15 kevent(0x4, 0x0, 0x0) = 1 0 12568/0x1bd5f: 156 451 0 __disable_threadsignal(0x1, 0x0, 0x0) = 0 0 12568/0x1b5c6: 3528 62999647 19 kevent(0x4, 0x0, 0x0) = 0 0 12568/0x1b5c6: 3631 544 93 workq_kernreturn(0x1, 0x40048B4, 0x0) = 0 0 12568/0x1be1c: 27 9 0 thread_selfid(0x0, 0x0, 0x0) = 114204 0 12568/0x1be1c: 131 12 5 kevent(0x4, 0xB0184DDC, 0x1) = 1 0 12568/0x1b5c6: 3655 214 17 kevent(0x4, 0x0, 0x0) = 1 0 12568/0x1be1c: 144 450 0 __disable_threadsignal(0x1, 0x0, 0x0) = 0 0