Sun Java System Web Server 6.1 SP9 Performance Tuning, Sizing, and Scaling Guide

CGIStub Processes (UNIX/Linux)

You can adjust the CGIStub parameters on UNIX/Linux systems. In Sun Java System Web Server, the CGI engine creates CGIStub processes as needed. On systems that serve a large load and rely heavily on CGI-generated content, it is possible for the CGIStub processes to consume all system resources. If this is happening on your server, the CGIStub processes can be tuned to restrict how many new CGIStub processes can be spawned, their timeout value, and the minimum number of CGIStub processes that will be running at any given moment.

Note –

If you have an init-cgi function in the magnus.conf file and you are running in multi-process mode, you must add LateInit = yes to the init-cgi line.

The four directives and their defaults that can be tuned to control Cgistub are:


You can set the CGIStub processes by: