This was my first IBM InterConnect conference and I found it very interesting. What I did I learn in my four days? A great deal—some good, some a little disquieting.
Finding inefficiencies in your applications to save CPU is something you should already be doing, especially when the mainframe is experiencing even more activity from digital engagement.
When it comes to measuring CICS regions for application performance, analysts need to look at the CICSPlex as a whole as opposed to only looking at the performance of one or a few particular CICS regions.
IMS is still used by some of the largest and most important mainframe customers in the world. It still has the ability to be incredibly fast and efficient. But developers often forego measuring IMS transaction performance, a critical component to developing and delivering mainframe software in a digital economy that expects speed and quality.
Not surprisingly, one of the questions I get asked most often asked by customers is how much CPU could they be saving--and how do they pinpoint the not-so-obvious sources of inefficiencies that might be using excess CPU. I tell them for DB2 applications, executing RUNSTATS is a good place to start. [...]