High CPU

For the last few weeks I've been experiencing some High CPU usage for some reason and I can't figure out what has been causing it.

17:52:01 up 270 days, 22:36, 1 user, load average: 3.13, 3.02, 2.67
171 processes: 163 sleeping, 4 running, 4 zombie, 0 stopped
CPU states: cpu user nice system irq softirq iowait idle
total 41.7% 0.0% 5.0% 0.1% 0.7% 2.1% 50.0%
Mem: 1026748k av, 1022144k used, 4604k free, 0k shrd, 11144k buff
943116k active, 22268k inactive
Swap: 2097136k av, 421364k used, 1675772k free 252280k cached

PID USER PRI NI SIZE RSS SHARE STAT %CPU %MEM TIME CPU COMMAND
13494 root 16 0 11088 2852 9876 S 40.0 0.2 851:44 0 httpd
29780 mysql 15 0 147M 19M 3756 S 4.3 1.9 10:02 0 mysqld
7193 root 17 0 5272 1368 4892 R 2.1 0.1 0:46 0 top
7103 root 15 0 6844 1848 6376 S 0.3 0.1 0:02 0 sshd
1 root 16 0 1504 160 1356 S 0.0 0.0 0:40 0 init
2 root RT 0 0 0 0 SW 0.0 0.0 0:00 0 migration/0
3 root 34 19 0 0 0 SWN 0.0 0.0 0:00 0 ksoftirqd/0

Any help would be appreciated.

 

 

 

 

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