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  1. Path: 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
  2. From: grout@sp90.csrd.uiuc.edu (John R. Grout)
  3. Newsgroups: comp.arch
  4. Subject: Re: DEC Alpha AXP System INTEGER Performance
  5. Message-ID: <1992Nov18.235634.23970@csrd.uiuc.edu>
  6. Date: 18 Nov 92 23:56:34 GMT
  7. References: <jdd.721687838@cdf.toronto.edu> <1710@niktow.canisius.edu> <1992Nov16.231949.1214@ryn.mro4.dec.com> <1992Nov18.180357.3105@sparky.imd.sterling.com>
  8. Sender: news@csrd.uiuc.edu
  9. Reply-To: j-grout@uiuc.edu
  10. Organization: UIUC Center for Supercomputing Research and Development
  11. Lines: 17
  12.  
  13. yankus@IMD.Sterling.COM (Mike Yankus) writes:
  14.  
  15. >You are forgetting about a large volume of programs which mainly do
  16. >nothing but character manipulation.  These include editors, compilers,
  17. >mail handling, and the very programs which do the posting and reading
  18. >of News.  I would consider a machine which does not have efficient
  19. >character handling capability a step backwards of about 30 years.
  20. >Is this really the case with the Alpha?
  21.  
  22. No... one combines load and store (which are faster because they are
  23. restricted to aligned 64-bit quantities) and various register-to-register
  24. instructions to efficiently handle characters in registers... a typical RISC
  25. tradeoff.
  26. --
  27. John R. Grout                        j-grout@uiuc.edu
  28. University of Illinois, Urbana-Champaign
  29. Center for Supercomputing Research and Development
  30.