HPU and zIIP overload

2013-12-20 Thread R.S.
The following scenario: an LPAR wirth 5 CPs and single zIIP. Some HPU job causes 100% utilization of zIIP, other HPU tasks wait until zIIP gets free cycles. What's strange IMHO: the jobs do not try to consume CP cycles. It's good, because of SCRT reports, from the other hand it's bad, because

Re: HPU and zIIP overload

2013-12-20 Thread Hunkeler, Peter
Yes, IIPHONORPRIORITY is your way to allow or disallow zIIP work to be run on CPs in scenarios as you describe. -- Peter Hunkeler -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to

Re: HPU and zIIP overload

2013-12-20 Thread Martin Packer
@listserv.ua.edu Date: 20/12/2013 12:26 Subject:HPU and zIIP overload Sent by:IBM Mainframe Discussion List IBM-MAIN@listserv.ua.edu The following scenario: an LPAR wirth 5 CPs and single zIIP. Some HPU job causes 100% utilization of zIIP, other HPU tasks wait until zIIP gets