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...