top - 16:18:04 up 28 days,  7:12,  2 users,  load average: 0.16, 0.42, 0.28
Tasks:  70 total,   1 running,  69 sleeping,   0 stopped,   0 zombie
%Cpu(s):  3.6 us,  1.3 sy,  0.0 ni, 95.0 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
KiB Mem:    512128 total,   428024 used,    84104 free,   119756 buffers
KiB Swap:  1048572 total,    22408 used,  1026164 free.   175764 cached Mem

free -h
             total       used       free     shared    buffers     cached
Mem:          500M       414M        85M        60M       120M       175M
-/+ buffers/cache:       118M       382M
Swap:         1.0G        21M       1.0G