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IBM System z9 and eServer zSeries Performance: Processor Design Considerations



Document Author:

Kathy Walsh


Document ID:

FLASH10208


Doc. Organization:

Advanced Technical Sales


Document Revised:

07/12/2006


Product(s) covered:

zSeries 800; zSeries 900







Abstract: All modern microprocessor architecture is designed with the understanding there is a codependency between a processor's design and the code it expects to execute. Applications which are designed without respect to processor design may see performance issues as the application is moved across different processor. This article discusses a specific coding situation which when executed on a IBM System z processor or an eServer zSeries processor may cause performance shortfalls. The article describes the programming practice which has caused performance shortfalls and describes an approach for identifying and managing applications which may be at risk.

istream_flash_062606_v4.pdf



Classification:

Hardware; Software

Category:

Performance




Platform(s):

IBM System z Family



O/S:

z/OS

Keywords:

Processor performance, Istream

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