Click on the Performance Tuning tab to configure
the maximum number of child server processes you want and to configure
the Apache options for client connections. The default settings for
these options are appropriate for most situations. Altering these
settings may affect the overall performance of your Web server.
Set Max Number of Connections to the maximum number
of simultaneous client requests that the server will handle. For each
connection, a child httpd process is created. After
this maximum number of process is reached, no one else will be able to
connect to the Web server until a child server process is freed. You can
not set this value to higher than 256 without recompiling Apache. This
option corresponds to the MaxClients
directive.
Connection Timeout defines, in seconds, the amount
of time that your server will wait for receipts and transmissions during
communications. Specifically, Connection Timeout
defines how long your server will wait to receive a GET request, how
long it will wait to receive TCP packets on a POST or PUT request and
how long it will wait between ACKs responding to TCP packets. By
default, Connection Timeout is set to 300 seconds,
which is appropriate for most situations. This option corresponds to
the TimeOut
directive.
Set the Max requests per connection to the maximum
number of requests allowed per persistent connection. The default value
is 100, which should be appropriate for most situations. This option
corresponds to the MaxRequestsPerChild
directive.
If you check the Allow unlimited requests per
connection option, the MaxKeepAliveRequests
directive to 0, and unlimited requests are allowed.
If you uncheck the Allow Persistent Connections
option, the KeepAlive
directive is set to false. If you check it, the KeepAlive
directive is set to true, and the KeepAliveTimeout
directive is set to the number that is selected as the
Timeout for next Connection value. This directive
sets the number of seconds your server will wait for a subsequent
request, after a request has been served, before it closes the
connection. Once a request has been received, the Connection
Timeout value applies instead.
Setting the Persistent Connections to a high value
may cause a server to slow down, depending on how many users are trying
to connect to it. The higher the number, the more server processes
waiting for another connection from the last client that connected to
it.
