httpd/apache hurting server load

[محروم.كوم]

This is what I keep seeing. Spikes up to 6 and a steady level of 3 during peak times.....Occasional DB errors (rare, but it happens)



I cant figure out whats going on.

here is my httpd.conf parameters

Quote:
KeepAlive Off
MaxKeepAliveRequests 5
KeepAliveTimeout 5
MinSpareServers 25
MaxSpareServers 32
StartServers 30
#MaxClients 1000
#MaxRequestsPerChild 500
MaxClients 150
MaxRequestsPerChild 100
Timeout 15
So far I have tested by

- disabling all plugins....
- all "server optimization" tips for vbulletins options
- various httpd.conf configs

No cigar. Any input on what i can check? __DEFINE_LIKE_SHARE__