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Article #21929Re: Integer/Multiply/Divide on Sparc
From: Bruce Barnett
Date: Wed, 03 Jan 1990 17:30
Date: Wed, 03 Jan 1990 17:30
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1762 bytes
In article <5842@ncar.ucar.edu> thor@stout.UCAR.EDU (Rich Neitzel) writes: | register auto auto int function auto | int short long multiply call+ret double |cc: |Sun-4 () 0.54 0.55 0.48 4.80 0.72 1.20 |Sun-4 (-O4) 0.41 0.44 0.40 4.45 0.67 1.00 |Sun SS1 (no -O) 0.38 0.40 0.35 19.7 0.51 0.72 |Sun SS1 (-O) 0.29 0.33 0.30 19.5 0.49 0.59 I get: ------- Sun4/110 (no -O) 0.37 0.69 0.62 5.90 1.11 1.07 Sun4/110 (-O4) 0.26 0.34 0.26 5.30 0.73 0.83 SS1 (no -O) 0.38 0.40 0.36 3.43 0.51 0.72 SS1 (-O4) 0.30 0.33 0.30 3.30 0.49 0.60 The Sun 4/110 has the new FPU. There are several different FPU units around. Weitek and TI I believe. I remember something about early SparcStations being shipped with different FPU's. Not all SparcStations are created equal? -- Bruce G. Barnett barnett@crd.ge.com uunet!crdgw1!barnett
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!uunet!crdgw1!grymoire!barnett From: barnett@grymoire.crd.ge.com (Bruce Barnett) Newsgroups: comp.arch Subject: Re: Integer/Multiply/Divide on Sparc Message-ID: <4411@crdgw1.crd.ge.com> Date: 3 Jan 90 17:30:34 GMT References: <158@csinc.UUCP> <787@stat.fsu.edu> <42701@lll-winken.LLNL.GOV> <788@stat.fsu.edu> <42737@lll-winken.LLNL.GOV> <KHB.90Jan2121328@chiba.kbierman@sun.com> <5842@ncar.ucar.edu> Sender: news@crdgw1.crd.ge.com Organization: GE Corp. R & D, Schenectady, NY Lines: 24