Will setting z/OS parameter USEZOSV1R9RULES to YES or NO make any difference to TPX?
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Will setting z/OS parameter USEZOSV1R9RULES to YES or NO make any difference to TPX?

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Article ID: 50183

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Updated On:

Products

Teleview TELEVIEW- PACKAGE TPX - Session Management

Issue/Introduction

 VSM USEZOSV1R9RULES(NO|YES): YES causes GETMAIN and STORAGE OBTAIN behavior to be unchanged from its historic behavior. NO causes GETMAIN and STORAGE OBTAIN behavior for user-region private area subpools that are both below and above the line to be implemented. Thus DQEs can be merged where possible. The default is YES to provide a seamless migration. However, IBM recommends that you specify USEZOSV1R9RULES(NO) to obtain a performance benefit for applications with long DQE/FQE chains for user-region private area subpools.

 

 

Environment

 
Component: TLVIEW

Resolution

There should be no problem for TPX with either setting for USEZOSV1R9RULES.

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