Apache MPM leader

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Description:	An experimental variant of the standard `worker` -MPM
Status:	MPM
Module Identifier:	mpm_leader_module
Source File:	leader.c

Summary

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Warning

This MPM is experimental, so it may or may not work - as expected.

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

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To use the leader MPM, add - --with-mpm=leader to the configure - script's arguments when building the httpd.

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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 are 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.

Directives

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