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Performance Considerations When Moving to Fewer Faster CPUs



Document Author:

Kathy Walsh


Document ID:

WP100258


Doc. Organization:

Advanced Technical Sales


Document Revised:

08/24/2003


Product(s) covered:

Performance







Abstract: Current processor design continues to deliver more CPU capacity with the same or fewer number of central processors (CPs). This environment results in some customers running their workloads on configurations with fewer CPs.

While this migration can be very successful with workloads enjoying equal or better performance after the move, there are some planning and tuning issues to consider. This paper will discuss the issues involved with reducing the number of processors and will provide guidelines to ensure a successful migration. The information presented is the result of tuning experience at the IBM Washington Systems Center as well as the results of several tests run in a controlled environment.

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Classification:

Hardware; Software

Category:

Performance




Platform(s):

IBM System z Family



O/S:

OS/390

Keywords:

LPAR , Fewer Faster CPs, 414910

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