Author: Jeremiah Penery
Date: 15:24:09 03/27/02
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On March 26, 2002 at 18:55:46, Sune Fischer wrote: >On March 26, 2002 at 18:31:50, Jeremiah Penery wrote: > >>>Well lets not split hairs on this, I think the alpha was designed primarily to >>>do floating point ops. It is still pretty fast on the integers though: >>>http://www.redhill.net.au/hw-cpu-test-nonx86.html >> >>The primary design philosophy of all 64-bit RISC processors is pretty much >>straight FP performance. Some of the chips relatively suck at integer >>operations, Alpha doesn't. > >So you question the graph? >You want me to find more? What are you talking about? I'm not questioning anything - in fact, I was agreeing with you about Alpha being designed primarily for FP performance. And so are all the other RISC architectures, really. As for the graph, it was last updated in 1999, and is quite outdated. However, it's generally accepted that the SPARC processors have bad performance in FP and in Integer, relative to PA-RISC, Alpha, and POWER processors. >>Most programs are not using 64-bit integers, so this doesn't affect them much. >>The biggest speedup for them comes from having twice as many registers to work >>with. > >I thought we _were_ talking about Crafty type programs, naturally M$ Word won't >benefit a whole lot, that is obvious. Maybe I misread something. But I hope now we each know what the other is talking about.
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