Charles, YES I AGREE, storage nowadays can do a lot of paging, and support a CEC easily burning 11 minutes of CPU time paging. DPR rates of 100,000/sec are a walk in the park for current IBM, EMC or HDs controllers, and probably higher on a boxes that can do >2,000,000 cache hits a second.
Of course, if the OP is not actually going to look at anything but the CPU time, he will probably never find out what cause it. Ron -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Charles Mills Sent: Wednesday, July 26, 2017 5:37 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: [IBM-MAIN] REGION=0M leads to CPU through the roof By ELEVEN CPU MINUTES??? A modern processor can do a heck of a lot of paging with 11 CPU minutes. Charles -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Ron Hawkins Sent: Wednesday, July 26, 2017 5:08 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: REGION=0M leads to CPU through the roof Richard, You used 1.6GB of virtual storage. How much paging did the address do? There's no free lunch, and page faults will increase the TCB time for an address. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
