Chapter 3. Workload, Capacity, And Performance - IBM eserver i5 Handbook

Draft Document for Review October 18, 2004
Workload, capacity, and
Chapter 3.
performance
Workload and performance are critical considerations in selecting a computing
system. The performance that users see with their i5 and iSeries servers depend
on many factors that often involve:
The type and number of disk devices
The amount of memory
The system model and processor
The application being run
We recommend that you order sufficient memory to balance memory across
processors. For sizing recommendations for the Eserver i5 and iSeries servers,
consult your IBM Marketing Representative and service provider. You can find
detailed performance information in iSeries Performance Capabilities Reference,
SC41-0607.
This chapter discusses some of the performance measurements to take into
account. This includes workload ratings and processor positioning. This chapter
also discusses the tools that are available to measure and size the workload.
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