gewoon even 'top' intikken in de terminal.
Of is het niet dat wat je bedoelt?
lennert@lennert:~$ top
top - 11:56:08 up 2:29, 2 users, load average: 1.07, 1.54, 1.65
Tasks: 121 total, 1 running, 120 sleeping, 0 stopped, 0 zombie
Cpu(s): 45.4%us, 9.8%sy, 0.0%ni, 44.8%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 449208k total, 438868k used, 10340k free, 19364k buffers
Swap: 3903752k total, 440396k used, 3463356k free, 115428k cached