Your graphic based on the number of engines online is a pretty clever idea.
But I was thinking that the number of online engines was just one way to implement CoD. Do I misunderstand? Plus, as others have pointed out, clock seconds don't give us a feel for how well that work would run on another type of box. I'd go with a graphic plotting MSU's consumed with one or more reference lines for the running CPU as well as the next two larger boxes. Meaningful? Perhaps not. But perhaps the least meaningless :-) At least one can compare two numbers and get a rough feel, which should be good enough to produce a reasonable budget. And that's all managment really wants, I think. -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Barbara Nitz Sent: Thursday, July 07, 2011 1:41 AM To: [email protected] Subject: Re: How many CPU seconds can I consume per 10minutes? ..snip I heartily dislike both MSUs and MIPS in any shape, form or size, as it does not translate into something I can comprehend. Having said that, I used yesterday's data from one of our boxes where the current grafic from the type70PR records shows 100% cpu usage (actually, 99,8%) on the box. Adding up all the cpu consumed during each of those intervals gets me a number pretty close to 3600s. That answers the big question I had - how many cpu seconds can I achieve in a 10-minute interval on 6 processors? Everybody who said it's equal to wall clock time times cps was right, and I was just to dense to understand. But this means (to my way of thinking) that 1 cpu second on a slowed down processor model is not equal to 1 cpu second on a not-slowed down processor model. In future, I'll be wary when I hear that a job used so-and-so much cpu seconds. Now I also understand (I think) why service units were invented. So, in a grafic showing the cpu seconds consumed, my 'capacity line' will be no.of.cps*10min for a ten-minute interval. And if CoD is used again, management can *see* where we cross that line because we had varied more processors online and how many cpu seconds were consumed beyond our 'normal' capacity. Thanks for your patience, Barbara NOTICE: This electronic mail message and any files transmitted with it are intended exclusively for the individual or entity to which it is addressed. The message, together with any attachment, may contain confidential and/or privileged information. Any unauthorized review, use, printing, saving, copying, disclosure or distribution is strictly prohibited. If you have received this message in error, please immediately advise the sender by reply email and delete all copies. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
