Average Memory A Normal Ruby On Rails Site Consumes

Hi Guys...!!

I wanted to know how much, average CPU memory a normal ruby on rails
site consumes.

I have a site on ruby on rails, hosted on a VPS Server, which is
consuming a heavy CPU memory usage, due to which my other sites are
getting affected and site is too slow. The log I have got is:

CPU%
1809 root 16 0 95272 88m 3092 R 43.3 3.2
2:43.26 ruby-bin
30666 mysql 18 0 375m 132m 4676 S 90.4 4.9
35:01.93 mysqld
3129 root 15 0 2280 1064 820 R 0.3 0.0
0:00.98 top
10216 nobody 20 0 19564 7684 1832 S 0.3 0.3
0:00.10 http
14246 nobody 15 0 19424 7436 1832 S 0.3 0.3
0:00.01 httpd
15955 nobody 15 0 19536 7540 1788 S 0.3 0.3 0:00.01
httpd
1 root 15 0 2148 668 580 S 0.0
0.0 0:00.61 init

Can anyone tell me the solution.......???