PID USERNAME PRI NICE SIZE RES STATE C TIME WCPU CPU COMMAND 12587 diamondd 65 10 5660K 4608K CPU0 0 0:13 96.87% 46.34% perl CPU states: 0.0% user, 3.5% nice, 46.5% system, 0.6% interrupt, 49.4% idle ktrace just shows 12587 perl CALL read(0,0x814e000,0x1000) 12587 perl RET read -1 errno 35 Resource temporarily unavailable 12587 perl CALL gettimeofday(0xbfbff9d0,0) 12587 perl RET gettimeofday 0 12587 perl CALL read(0,0x814e000,0x1000) 12587 perl RET read -1 errno 35 Resource temporarily unavailable