in reply to Re^2: 'A' web server takes another "time out"
in thread 'A' web server takes another "time out"

MaxClients of 100 seems pretty high to me. Commodity hardward isn't going to deal with 100 simultaneous mod_perl jobs very well! Even if you have the memory to handle that many jobs, you probably don't have the CPU.

MaxClients can be high on a front-end server which serves static content and does a reverse proxy to the mod_perl backend. Those servers do much less work per-request and a given machine can run more of them simultaneously.