Performance Tuning for Content Manager

Chapter 9. Tuning WebSphere for Content Manager 263

number of the idle child server processes falls below the value specified for

MinSpareServer, then the parent process will create new child processes.

Setting this directive to some value m ensures that you always have at least n + m

httpd processes running when you have n active client requests.

Default values

5

How to view or set

1. Edit the IBM HTTP server file httpd.conf, located in the directory

IBM_HTTP_Server_root_directory/conf.

2. Change the value of the MinSpareServers parameter.

3. Save the changes and restart the IBM HTTP server.

Our recommendation

Use the default. Monitor the CPU usage for creating and destroying HTTP

requests.

You should have to tune this parameter

only on very busy sites. Setting this

parameter to a large number is almost always a bad idea.

9.4.5 Maximum spare server processes (MaxSpareServers)

The MaxSpareServers directive sets the desired maximum number of idle child

server processes. An idle process is one that is not handling a request. If the

number of idle processes exceeds the value specified for MaxSpareServers, then

the parent process will kill the excess processes.

This is the maximum number of spare servers, not the maximum total number of

client requests that can be handled at one time. If you wish to limit that number,

see the MaxClients directive.

Default values

10

Attention: This directive has no effect on Microsoft Windows.

Attention: This directive has no effect when used with the Apache Web server

on a Microsoft Windows platform.