Akins, Brian wrote:
One of the things I've noticed on a practical level, is that forked children
in worker wind up being "linearized" within themselves to some extent.
Think of how the buffered logs work in mod_log_config (one buffer protected
by a mutex). (I can't think of the correct term for it right now. Basically
every thread is waiting on the same mutex eventually.) This is seen in
other modules...
The fork gets around this somewhat, as there are multiple mutexes
independently locked/unlocked.
I don't think the intention would be to use a single process on Unix --
we would still spawn multiple children -- they would just be created
using fork+exec of the httpd binary, rather than just fork.
-Paul
