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y CGI: HTTP invokes a CGI program which builds a simple HTML page and serves it via the HTTP
server. This CGI program can run in either a new or a named activation group. The CGI programs
were compiled using a "named" activation group unless specified otherwise.
Web Server Capacity Planning: Please use the IBM Systems Workload Estimator to do capacity
planning for Web environments using the following workloads: Web Serving, WebSphere, WebFacing,
WebSphere Portal Server, WebSphere Commerce. This tool allows you to suggest a transaction rate and
to further characterize your workload. You’ll find the tool along with good help text at:
http://
www.ibm.com/systems/support/tools/estimator . Work with your marketing representative to
utilize this tool (also chapter 23).
The following tables provide a summary of the measured performance data for both static and dynamic
Web server transactions. These charts should be used in conjunction with the rest of the information in
this section for correct interpretation. Results listed here do not represent any particular customer
environment. Actual performance may vary significantly from what is provided here.
Relative Performance Metrics:
y “Relative Capacity Metric: This metric is used throughout this section to demonstrate the relative
capacity performance between primitive tests. Because of the diversity of each environment the
ability to scale these results could be challenging, but they are provided to give you an insight into the
relation between the performance of each primitive HTTP Server test..
IBM i 6.1 Performance Capabilities Reference - January/April/October 2008
© Copyright IBM Corp. 2008 Chapter 6 - Web Server and WebSphere 80