Martin Packer (Principal z Systems Investigator) and Marna Walle (z/OS Development) are two IBMers talking about whatever z/OS topics come to mind. Often guest experts weigh in on current technologies. This podcast will give you timely, interesting, and entertaining z/OS topics. Each episode comprises a “Mainframe” item, a “Performance” item, and “Topics” which is anything Martin or Marna care to talk about, which might or might not be related to their jobs. So it goes…
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Martin Packer (Principal z Systems Investigator) and Marna Walle (z/OS Development) are two IBMers talking about whatever z/OS topics come to mind. Often guest experts weigh in on current technologies. This podcast will give you timely, interesting, and entertaining z/OS topics. Each episode comprises a “Mainframe” item, a “Performance” item, and “Topics” which is anything Martin or Marna care to talk about, which might or might not be related to their jobs. So it goes…
IEFUSI exit replacement with a parmlib member, related to storage and limits that can be specified.
Functions are delivered as continuous delivery, such as the SAF check filter, and number of shared pages used.
In z/OS 3.1: Dedicated Real Memory Pools to assign memory to a specific application, like zCX, in all frame sizes.
Performance - Open Data Sets, Part 1
Looking at many open data sets (100s of thousands) for middleware.
ALLOCxx's SWBSTORAGE has to specify ATB to put control blocks above the bar. Applications need to exploit the service.
Monitoring virtual storage is key here, and remains important. The number of volumes needed affects how much memory is needed, so there is no one answer.
Topics - Evolution of a Graph
Martin explores the large improvements he's made with his custom graphing programs.
Start with naive rows and columns, with rigid labels.
Then, generating the titles with REXX. Then, using REXX to drive GDDM directly. Then, use REXX to generate many more data point and plotting them directly. Then, have REXX generate the series names.
Martin encourages all to evolve their graphs, to tell the story better, and run more efficiently.
Customer Requirement
ZOSI-2195 "Extended GDG causes space issues", has been satisfied. IGGCATxx's GDGLIMITMAX with OA62222 on V2.3.
Martin Packer (Principal z Systems Investigator) and Marna Walle (z/OS Development) are two IBMers talking about whatever z/OS topics come to mind. Often guest experts weigh in on current technologies. This podcast will give you timely, interesting, and entertaining z/OS topics. Each episode comprises a “Mainframe” item, a “Performance” item, and “Topics” which is anything Martin or Marna care to talk about, which might or might not be related to their jobs. So it goes…
