high used memory

[Jrak]

help me please high used memory and one web for servers


the servers cpu : intel celeron 1.7GHZ
and memory : 512 MB
hardisk : 40 Gb


help me plesk


the top is Used memory


top - 05:16:54 up 3 days, 18:09, 1 user, load average: 0.36, 1.05, 1.57
Tasks: 90 total, 6 running, 84 sleeping, 0 stopped, 0 zombie
Cpu(s): 84.1% us, 3.3% sy, 0.0% ni, 11.3% id, 1.3% wa, 0.0% hi, 0.0% si
Mem: 515312k total, 443828k used, 71484k free, 16924k buffers
Swap: 1572856k total, 100k used, 1572756k free, 250224k cached

 

[atomicturtle]

We've covered this topic a few times before:

http://forum.swsoft.com/showthread.php?t=49447&highlight=memory