Leader MPM:

This is an experimental variant of the standard worker MPM.

It uses a Leader/Followers design pattern to coordinate work among threads:

To use the leader MPM, add "--with-mpm=leader" to the configure

script's arguments when building the httpd.

This MPM depends on APR's atomic compare-and-swap operations for

thread synchronization. If you are compiling for an x86 target

and you don't need to support 386s, or you're compiling for a

SPARC and you don't need to run on pre-UltraSPARC chips, add

"--enable-nonportable-atomics=yes" to the configure script's

arguments. This will cause APR to implement atomic operations

using efficient opcodes not available in older CPUs.