Can anyone tell me why httpd cpu usage is so high

[nerbonne]

Please take a look at this. Why would the cpu usage be so high. Also, how can I find out what is causing this?

5.6 00:00:54 /usr/sbin/httpd
0.9 00:01:43 /usr/sbin/httpd
0.6 00:05:20 /usr/libexec/mysqld --defaults-file=/etc/my.cnf --basedir=/usr --datadir=/var/lib/mysql --user=mysql --pid-file=/var/run/mysqld/mysqld.pid --skip-locking
0.4 00:00:43 /usr/sbin/httpd
0.4 00:00:45 /usr/sbin/httpd
0.4 00:00:48 /usr/sbin/httpd
0.3 00:00:22 /usr/sbin/httpd
0.3 00:00:19 /usr/sbin/httpd
0.3 00:00:28 /usr/sbin/httpd
0.3 00:00:30 /usr/sbin/httpd
0.2 00:00:14 /usr/sbin/httpd
0.2 00:00:14 /usr/sbin/httpd
0.2 00:00:16 /usr/sbin/httpd
0.1 00:00:02 /usr/sbin/httpd
0.1 00:01:08 [kjournald]
0.0 00:00:00 ps -e -o pcpu,cputime,args --sort pcpu