> -----Original Message----- > From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On > Behalf Of Roach, Dennis > Sent: Thursday, July 19, 2007 10:43 AM > To: [email protected] > Subject: zSeries IFL speed rating > > > Is there a site that gives a Mhz rating for the z900 and z9 IFLs? > > > > Dennis Roach
I don't know why you want this, but MHz can be misleading. In fact, all engines on a particular zBox (z800, z890, z900, z990, z9BC, and z9EC) run with the same cycle time. The performance differences within a given box are due to delays in the microcode loaded. IFLs (and zAAPs and zIIPS) all run at "full speed". Eg. all z800 engines have the same cycle speed. It is just that some cycles are "wasted" by the microcode in order to decrease performance. aka "knee capping". -- 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
