Que tal top
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top - 07:35:04 up 1 day, 7:26, 1 user, load average: 0.00, 0.00, 0.00
Tasks: 60 total, 1 running, 59 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.2%us, 0.1%sy, 0.0%ni, 99.7%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 1048576k total, 490672k used, 557904k free, 0k buffers
Swap: 0k total, 0k used, 0k free, 0k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1 root 18 0 2040 660 572 S 0 0.1 0:06.09 init
1226 root 17 -4 2128 424 256 S 0 0.0 0:00.00 udevd
1800 root 16 0 1708 580 488 S 0 0.1 0:00.52 syslogd
1831 sw-cp-se 15 0 5156 2072 1340 S 0 0.2 0:00.04 sw-cp-serverd
1843 root 15 0 3660 852 608 S 0 0.1 0:00.99 sshd
1854 root 15 0 2680 880 712 S 0 0.1 0:00.09 xinetd
1869 root 18 0 5380 792 552 S 0 0.1 0:00.00 couriertcpd
1871 root 18 0 4228 964 752 S 0 0.1 0:00.00 courierlogger