> -----Original Message----- > From: The IBM z/VM Operating System > [mailto:[EMAIL PROTECTED] On Behalf Of Phil Smith III > Sent: Thursday, November 08, 2007 12:48 PM > To: [email protected] > Subject: Poster of computer hardware events? > > > A buddy asked me: > > "At a previous employer, someone had an article, poster or > something (I know - real specific - it was 15+ years ago) > that tried to put the time for computer events into > perspective. It started with the quickest instruction (RR) > having a baseline of 1 second. It the proceeded to go through > all of the instructions, RX, RS, SS etc. and then into I/O, > MIH and so on. Have you ever heard or seen anything like > this? I'm having trouble stressing the importance of poor I/O > response time and I thought this might be of use." > > I had to tell him I hadn't ever seen such a thing, but would > like to. I figure if anyone else alive knows what this > is/was, they'll be on one of these two lists...! > > Anyone? > -- > ...phsiii > > Phil Smith III
Such a thing was possible back when IBM published manuals that usually had the words "Functional Characteristics" in the title. IBM no longer publishes such manuals. The reason given is that the instruction execution is not deterministic anymore (superpiping, out-of-order execution, conditional execution, etc). -- 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.
