From Dennis Roach: "I'd just use MSUs. Eg. a 40MSU processor is 2x a 20MSU processor."
Be careful using MSUs to report on processor speed. MSUs are strictly for software pricing and are tweaked with each processor upgrade to keep software costs somewhat within line. For example a 2064-1C4 processor of 843 MIPS is rated at 153 MSUs for a 5.51 factor, a 2086-470 processor is 1313 MIPS/208 MSUs (6.31), a 2096-S07/U04 processor is 1004 MIPS/138 MSUs (7.28), and a 2094-404 processor is 740 MIPS/103 MSUs (7.18). So a 40 MSU processor is not necessarily 2x a 20 MSU processor. Tom Kelman Commerce Bank of Kansas City (816) 760-7632 -----Original Message----- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of McKown, John Sent: Thursday, July 19, 2007 12:13 PM To: [email protected] Subject: Re: zSeries IFL speed rating > -----Original Message----- > From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On > Behalf Of Roach, Dennis > Sent: Thursday, July 19, 2007 11:59 AM > To: [email protected] > Subject: Re: zSeries IFL speed rating > > > I have been asked to determine the improvement of an IFL on a > z9 BC over a z900. > Mhz is something the people being presented to understand. > It does not compare to the same speed on say INTEL. > > Dennis Roach I'd just use MSUs. Eg. a 40MSU processor is 2x a 20MSU processor. They should be able to understand that, if all they want is a relative comparison. Of course, your-mileage-may-vary because you are not only getting a faster cycle time, you are getting a different microcode implementation. So some instructions may be faster while others could even be slower (not likely). That is, each instruction might vary in performance relative to the same instruction on the other machine. If they get cranky, ask them if they think it is correct to compare the MHz rating of a Celeron, Pentium, and Xeon processor. If they do, then they're dangerously ignorant. A Xeon CPU with a lower MHz is much more productive than a Celeron with a faster MHz. -- John McKown Senior Systems Programmer HealthMarkets Keeping the Promise of Affordable Coverage Administrative Services Group Information Technology The information contained in this e-mail message may be privileged and/or confidential. It is for intended addressee(s) only. If you are not the intended recipient, you are hereby notified that any disclosure, reproduction, distribution or other use of this communication is strictly prohibited and could, in certain circumstances, be a criminal offense. If you have received this e-mail in error, please notify the sender by reply and delete this message without copying or disclosing it. ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ***************************************************************************** If you wish to communicate securely with Commerce Bank and its affiliates, you must log into your account under Online Services at http://www.commercebank.com or use the Commerce Bank Secure Email Message Center at https://securemail.commercebank.com NOTICE: This electronic mail message and any attached files are confidential. The information is exclusively for the use of the individual or entity intended as the recipient. If you are not the intended recipient, any use, copying, printing, reviewing, retention, disclosure, distribution or forwarding of the message or any attached file is not authorized and is strictly prohibited. If you have received this electronic mail message in error, please advise the sender by reply electronic mail immediately and permanently delete the original transmission, any attachments and any copies of this message from your computer system. ***************************************************************************** ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
