The following is a segment from a current Apache installation I'm attempting to decipher for bad performance. I noticed the below, both uncommented:
<IfModule mpm_prefork_module>
StartServers 5
MinSpareServers 5
MaxSpareServers 10
MaxClients 200
MaxRequestsPerChild 0
</IfModule>
<IfModule mpm_worker_module>
StartServers 2
MaxClients 150
MinSpareThreads 25
MaxSpareThreads 75
ThreadsPerChild 25
MaxRequestsPerChild 0
</IfModule>
When prefork and worker are both defined, what happens? We're using PHP, so I assume that prefork would be what we want.