Apache > HTTP Server > Documentation > Version 2.0 > Modules
Apache MPM threadpool
Description: Yet another experimental variant of the standard worker MPM Status: MPM Module Identifier: mpm_threadpool_module Source File: threadpool.c
Summary
Warning
This MPM is a developer playground and highly experimental, so it may or may not work as expected.
This is an experimental variant of the standard worker MPM. Rather than queuing connections like the worker MPM, the threadpool MPM queues idle worker threads and hands each accepted connection to the next available worker.
The threadpool MPM can't match the performance of the worker MPM in benchmark testing. As of 2.0.39, some of the key load-throtting concepts from the threadpool MPM have been incorporated into the worker MPM. The threadpool code is useful primarily as a research platform. For general-purpose use and for any production environments, use worker instead.
Directives
AcceptMutex
CoreDumpDirectory
EnableExceptionHook
Group
Listen
ListenBacklog
LockFile
MaxClients
MaxMemFree
MaxRequestsPerChild
MaxSpareThreads
MinSpareThreads
PidFile
ScoreBoardFile
SendBufferSize
ServerLimit
StartServers
ThreadLimit
ThreadsPerChild
User