As per my understanding, the event module can handle more
than one client per thread; since session which are in a
keep alive state will be managed by a common thread
freeing up the thread to handle other clients.
So, no. of threads per process is effectively 'no. of
active concurrent clients per process'.
Am I correct?
It depends on how you define active. With the event
MPM in httpd 2.4, additional processing (beyond keepalive)
does not require a dedicated thread. Have a look at the
"Async connections" columns at http://www.apache.org/server-status.
The connections being written to asynchronously are
"active" from some perspective, though the module
generating the response doesn't care about them anymore
(in the typical scenario).
