JES2 CPU Increase in z/OS 2.2

For those of you that don’t follow IBMMAIN (Cheryl follows everything – I think the NSA follow Cheryl to reduce their own workload!), there has been some recent discussion about an issue in JES2 whereby it consumes 2-3 times as much CPU in z/OS 2.2 as in...

Alain Maneville’s LPAR Design Tool Updated

Readers of Cheryl Watson’s Tuning Letter will be familiar with Alain Maneville, from IBM France. Alain co-wrote an article about HiperDispatch for the Tuning Letter, and is also the author of the LPAR Design tool.  The LPAR Design tool allows you to enter your LPAR...

Nordic GSE Conference in Reykjavik

Cheryl and I just finished taking part in the 2.5-day Nordic GSE 2016 conference in Reykjavik.  We really enjoyed the conference.  Everyone made us feel so welcome, and it was great to have a chance to finally meet people that have subscribed to the Tuning Letter for...