CPU loading problem???

[albert66]

hello all,
My DS for one website contains a vbulletin forum only with more than 600K registered users, the issue is that always the memory is highly utilized during low CPU load also with high CPU load.

load average: 1.20, 1.68, 1.47
Mem: 2074940k total, 2003464k used, 71476k free, 43640k buffers
load average: 4.35, 4.06, 2.80
Mem: 2074940k total, 2040712k used, 34228k free, 11988k buffers

Please assist me in this situation. Thanks in advance! -- This message may have been cut off and the rest will only be shown to members. To become a member, click here --

[Saggie]

If you run 'free -m', it shows this for example:
PHP Code:
$ free -m
*********total*****used****free***shared**buffers* *cached
Mem:*****1003*****998**** 5 *** 0 ** 23 ** 764
-/+ buffers/cache: ***210 ****793
Swap:*** 2045 ****147*****1897

Here, all ram is filled up, but only 210MB is actually in use. The rest is just caching of files, to improve overall speeds. -- This message may have been cut off and the rest will only be shown to members. To become a member, click here --