> -----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
