Check Win32 Apache+PHP into third_party

third_party/apache-win32/conf/extra/httpd-mpm.conf

+#
+# Server-Pool Management (MPM specific)
+# 
+
+#
+# PidFile: The file in which the server should record its process
+# identification number when it starts.
+#
+# Note that this is the default PidFile for most MPMs.
+#
+<IfModule !mpm_netware_module>
+    PidFile "logs/httpd.pid"
+</IfModule>
+
+#
+# The accept serialization lock file MUST BE STORED ON A LOCAL DISK.
+#
+<IfModule !mpm_winnt_module>
+<IfModule !mpm_netware_module>
+LockFile "logs/accept.lock"
+</IfModule>
+</IfModule>
+
+#
+# Only one of the below sections will be relevant on your
+# installed httpd.  Use "apachectl -l" to find out the
+# active mpm.
+#
+
+# prefork MPM
+# StartServers: number of server processes to start
+# MinSpareServers: minimum number of server processes which are kept spare
+# MaxSpareServers: maximum number of server processes which are kept spare
+# MaxClients: maximum number of server processes allowed to start
+# MaxRequestsPerChild: maximum number of requests a server process serves
+<IfModule mpm_prefork_module>
+    StartServers          5
+    MinSpareServers       5
+    MaxSpareServers      10
+    MaxClients          150
+    MaxRequestsPerChild   0
+</IfModule>
+
+# worker MPM
+# StartServers: initial number of server processes to start
+# MaxClients: maximum number of simultaneous client connections
+# MinSpareThreads: minimum number of worker threads which are kept spare
+# MaxSpareThreads: maximum number of worker threads which are kept spare
+# ThreadsPerChild: constant number of worker threads in each server process
+# MaxRequestsPerChild: maximum number of requests a server process serves
+<IfModule mpm_worker_module>
+    StartServers          2
+    MaxClients          150
+    MinSpareThreads      25
+    MaxSpareThreads      75 
+    ThreadsPerChild      25
+    MaxRequestsPerChild   0
+</IfModule>
+
+# BeOS MPM
+# StartThreads: how many threads do we initially spawn?
+# MaxClients:   max number of threads we can have (1 thread == 1 client)
+# MaxRequestsPerThread: maximum number of requests each thread will process
+<IfModule mpm_beos_module>
+    StartThreads            10
+    MaxClients              50
+    MaxRequestsPerThread 10000
+</IfModule>
+
+# NetWare MPM
+# ThreadStackSize: Stack size allocated for each worker thread
+# StartThreads: Number of worker threads launched at server startup
+# MinSpareThreads: Minimum number of idle threads, to handle request spikes
+# MaxSpareThreads: Maximum number of idle threads
+# MaxThreads: Maximum number of worker threads alive at the same time
+# MaxRequestsPerChild: Maximum  number of requests a thread serves. It is 
+#                      recommended that the default value of 0 be set for this
+#                      directive on NetWare.  This will allow the thread to 
+#                      continue to service requests indefinitely.                          
+<IfModule mpm_netware_module>
+    ThreadStackSize      65536
+    StartThreads           250
+    MinSpareThreads         25
+    MaxSpareThreads        250
+    MaxThreads            1000
+    MaxRequestsPerChild      0
+    MaxMemFree             100
+</IfModule>
+
+# OS/2 MPM
+# StartServers: Number of server processes to maintain
+# MinSpareThreads: Minimum number of idle threads per process, 
+#                  to handle request spikes
+# MaxSpareThreads: Maximum number of idle threads per process
+# MaxRequestsPerChild: Maximum number of connections per server process
+<IfModule mpm_mpmt_os2_module>
+    StartServers           2
+    MinSpareThreads        5
+    MaxSpareThreads       10
+    MaxRequestsPerChild    0
+</IfModule>
+
+# WinNT MPM
+# ThreadsPerChild: constant number of worker threads in the server process
+# MaxRequestsPerChild: maximum  number of requests a server process serves
+<IfModule mpm_winnt_module>
+    ThreadsPerChild      150
+    MaxRequestsPerChild    0
+</IfModule>
+