I seem to recall six or so buckets for CPU time, and you are using only two. More, my information may be way out of date and there may be several more buckets.
So, my first guess is that you may want to identify and capture more of the CPU time buckets. -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Ron van der Zande Sent: Friday, November 25, 2011 3:11 AM To: [email protected] Subject: CPU service units on z9 and z196 LS; For many years we are using SU = SRMCONSTANT*(TBCPUTIME+SRBCPUTIME) for chargeback and CPU usage awareness to our departments. Now we moved from z9 to z196 and see a decrease of 20-30%, depending of type of work, in the number of calculated SU's. When I asked another company they reported 15-20% decrease. I read a number of articles about SU's and most of the articles indicate SU's reported will differ more and more due to new type of machines, use of Ziip's, Zaap's, hiperdispatch, power saving mode etc etc. But to my assumption the SRMCONSTANT for a machine is defined by IBM in such a way that when looking at all users in the world going from a z9 to a z196 that some people see a decrease and some see a increase in the above calculation leveling out the differences. Because of the say 25% decrease mentioned there should be companies with a 25% increase in the calculation and I do not think they like to see this. So my question is what are the differences seen in your company if you have done such a move to get a feeling how "true" the SRMCONSTANT is defined? Met vriendelijke groeten / Kind Regards, Ron van der Zande ---------------------------------------------------------------------- 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 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
