Not quite, Sergey In the play computer world, the CPU drives most of the IO - on z, most IO functions are offloaded to the SAP. SCSI controller can better be compared to a z control unit. Regards
________________________________ From: Linux on 390 Port on behalf of Sergey Korzhevsky Sent: Thu 2007-02-01 14:50 To: [email protected] Subject: Re: 1 480 MIP IFL CPU = ? Hi Robert. Don't you think, that, for example, SCSI controller plays the same role in Intel world? Thank you. WBR, Sergey RPN01 <[EMAIL PROTECTED]> Sent by: Linux on 390 Port <[email protected]> 31.01.2007 16:59 Please respond to Linux on 390 Port To: [email protected] cc: Subject: Re: 1 480 MIP IFL CPU = ? It also doesn't account for the fact that the Intel processor is doing its own I/O, where that is almost completely off-loaded on the z9 to other processors. In all, it really is an apples to oranges comparison, and whatever conclusion you¹re looking for can be achieved. -- .~. Robert P. Nix Mayo Foundation /V\ RO-OC-1-13 200 First Street SW / ( ) \ 507-284-0844 Rochester, MN 55905 ^^-^^ ----- "In theory, theory and practice are the same, but in practice, theory and practice are different." > From: Dave Jones <[EMAIL PROTECTED]> > > Well, according to this article " Design methods for attaining IBM > System z9 processor cycle-time goals" > (http://www.research.ibm.com/journal/rd/511/mayer.html), the cycle time > of the new z9 processor chip is 1.7 GHz. So, based on these numbers > alone, a 2GHz. Pentium would outperform a z9 processor chip by a factor > of: 2.0/1.7 = 1.1765.....;-) > > Of course, this isn't very useful since we do not take into account the > differences in system architecture (RISC v. CISC, etc.) and design > (number of processors, memory access, etc.). But at least you can tell > your management that the processors in your new z9 are as fast as the > processors in their desktop PCs......;-) ---------------------------------------------------------------------- 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 ---------------------------------------------------------------------- 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 Important Notice: This e-mail and its contents are subject to the Business Connexion (Pty) Ltd. E-mail legal notice available at: http://www.bcx.co.za/disclaimer.htm ---------------------------------------------------------------------- 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
