Load avg issue

[nilesh vaghela]

We have mail server running with sendmail, horde with front end and around
350 users.

Some time the server indicate very high cpu usage.

What is to be ckeck

We are using RHEL3.


 10:49:11  up 91 days, 18:55,  3 users,  load average: 11.93, 15.27, 13.87
259 processes: 254 sleeping, 4 running, 1 zombie, 0 stopped
CPU states:  cpu    user    nice  system    irq  softirq  iowait    idle
           total   66.8%    0.0%   13.2%   0.4%     0.0%  118.8%    0.0%
           cpu00   39.9%    0.0%    7.5%   0.5%     0.1%   51.6%    0.0%
           cpu01   27.0%    0.0%    5.7%   0.0%     0.0%   67.1%    0.0%
Mem:  1024780k av, 1008968k used,   15812k free,       0k shrd,   13764k
buff
                    749248k actv,  143504k in_d,   14280k in_c
Swap: 1999992k av,  437476k used, 1562516k free                  558700k
cached
--------------
[root at mailserver root]# ps -el | grep imap | wc -l
    109
-----------------

-- 
Nilesh Vaghela
ElectroMech
Redhat Channel Partner and Training Partner
74, Nalanda Complex, Satellite Rd, Ahmedabad
25, The Emperor, Fatehgunj, Baroda.
www.electromech.info