On Mon, 1 Dec 2008 17:39:49 +0100, Miklos Szigetvari <[EMAIL PROTECTED]> wrote:
>Hi > >Long long time ago there has been this CPU time/instruction tables. >Something like this for a z9 ? > >-- >Miklos Szigetvari No. IBM not longer publishes such information as it is misleading. There are simply too many things which are done which make the data non repeatable. Even simple things such as branches. The branch prediction logic in modern systems makes that non deterministic. Today, it is generally felt that it is more important to write code that is reliable, understandable, and maintainable than squeezing out the last microsecond of performance (e.g. SR vs SLR vs XR to clear a register). -- John ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
