Как выбрать, какой Apache MPM использовать? рассказывает о плюсах и минусах различных MPM. Вот вопрос: как указать Apache 2.4, какой MPM использовать?
редактировать /etc/httpd/conf.modules.d/00-mpm.conf что выглядит так:
# Select the MPM module which should be used by uncommenting exactly
# one of the following LoadModule lines:
# prefork MPM: Implements a non-threaded, pre-forking web server
# See: http://httpd.apache.org/docs/2.4/mod/prefork.html
LoadModule mpm_prefork_module modules/mod_mpm_prefork.so
# worker MPM: Multi-Processing Module implementing a hybrid
# multi-threaded multi-process web server
# See: http://httpd.apache.org/docs/2.4/mod/worker.html
#
#LoadModule mpm_worker_module modules/mod_mpm_worker.so
# event MPM: A variant of the worker MPM with the goal of consuming
# threads only for connections with active processing
# See: http://httpd.apache.org/docs/2.4/mod/event.html
#
#LoadModule mpm_event_module modules/mod_mpm_event.so