Article View: comp.arch
Article #11263Re: DEC Alpha AXP System INTEGER Performance
From: John R. Grout
Date: Wed, 18 Nov 1992 23:56
Date: Wed, 18 Nov 1992 23:56
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yankus@IMD.Sterling.COM (Mike Yankus) writes: >You are forgetting about a large volume of programs which mainly do >nothing but character manipulation. These include editors, compilers, >mail handling, and the very programs which do the posting and reading >of News. I would consider a machine which does not have efficient >character handling capability a step backwards of about 30 years. >Is this really the case with the Alpha? No... one combines load and store (which are faster because they are restricted to aligned 64-bit quantities) and various register-to-register instructions to efficiently handle characters in registers... a typical RISC tradeoff. -- John R. Grout j-grout@uiuc.edu University of Illinois, Urbana-Champaign Center for Supercomputing Research and Development
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<1992Nov18.235634.23970@csrd.uiuc.edu>Path:
arc1-ca.pugleaf.net!sparky!uunet!ferkel.ucsb.edu!taco!rock!stanford.edu!agate!biosci!uwm.edu!ux1.cso.uiuc.edu!csrd.uiuc.edu!sp90.csrd.uiuc.edu!groutReferences:
<jdd.721687838@cdf.toronto.edu> <1710@niktow.canisius.edu> <1992Nov16.231949.1214@ryn.mro4.dec.com> <1992Nov18.180357.3105@sparky.imd.sterling.com>Show Full Headers
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Path: arc1-ca.pugleaf.net!sparky!uunet!ferkel.ucsb.edu!taco!rock!stanford.edu!agate!biosci!uwm.edu!ux1.cso.uiuc.edu!csrd.uiuc.edu!sp90.csrd.uiuc.edu!grout From: grout@sp90.csrd.uiuc.edu (John R. Grout) Newsgroups: comp.arch Subject: Re: DEC Alpha AXP System INTEGER Performance Message-ID: <1992Nov18.235634.23970@csrd.uiuc.edu> Date: 18 Nov 92 23:56:34 GMT References: <jdd.721687838@cdf.toronto.edu> <1710@niktow.canisius.edu> <1992Nov16.231949.1214@ryn.mro4.dec.com> <1992Nov18.180357.3105@sparky.imd.sterling.com> Sender: news@csrd.uiuc.edu Reply-To: j-grout@uiuc.edu Organization: UIUC Center for Supercomputing Research and Development Lines: 17