| Leader MPM: |
| This is an experimental variant of the standard worker MPM. |
| It uses a Leader/Followers design pattern to coordinate work among threads: |
| http://deuce.doc.wustl.edu/doc/pspdfs/lf.pdf |
| |
| 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. |
