Cross-posted to both VMESA-L and VSE-L mailing lists
Greetings, We have just converted the last of our 5 VSE machines to z/VSE 4.1.0 (from VSE/ESA 2.6.1) and are experiencing performance issues. My peak times are 98-100% utilization and people are complaining about poor response times. I don't know whether it's because I am using CICS data tables more now or because of the additional CPU utilization for z/VSE. Anyways, one question I have is the usage of the SET SHARE. I have been using the 'SHARE ABSOLUTE' directory control statement for each of my VSE machines (giving say 38% to one machine, giving 29% to another,etc...) with maximum share nolimit. The problems seem to occur when batch jobs are run in these predominately CICS/TS systems. I was wondering if maybe a SET SHARE RELATIVE technique would be more effective and what you do in prioritizing virtual machines within the physical machine? Thanks, Mike
