Article View: comp.arch
Article #21916Re: Integer/Multiply/Divide on Sparc
From: John Mashey
Date: Wed, 03 Jan 1990 02:29
Date: Wed, 03 Jan 1990 02:29
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2356 bytes
In article <5842@ncar.ucar.edu> thor@stout.UCAR.EDU (Rich Neitzel) writes:
>
>With all the talk about this subject I do not recall seeing any benchmarking
>of a sparc or any other system for that matter. The following table lists times
>generated by the Plum-Hall benchmark routines. (They were posted a while back
>to comp.misc.sources). There are three things that really stand out to my
Could somebody post the critical parts of this again so we can
look at it? Although I have high respect for Plum-Hall in general,
I'm always nervous about micro-level benchmarks. Now, I hate to have
to defend SPARC :-), but I must: realistic integer benchmarks
that I know [like the SPEC ones] simply don't correlate with
the results claimed below, at least not very much.
The RISC machines are noticably faster on actual integer programs....
> 2> In general, there is little difference between the RISC and
> CISC machines. For example the 68030 9000/370, 9000/835 and the SS1
> all have very close timings. In fact, except for call+ret and
> floating point, the 68030 has better timing. Even among the "1st"
> generation machines the 68020 based 3/260 beats the 4/260 in the
> same areas.
Again, this is why it would be nice to post the benchmark; one must
always be very careful of micro-level benchmarks: I just don't believe
that one can generalize from these results into thinking that a
33Mhz 68030 has faster integer performance overall than the RISCs...
--
-john mashey DISCLAIMER: <generic disclaimer, I speak for me only, etc>
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<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>Show Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!uunet!wuarchive!zaphod.mps.ohio-state.edu!mips!winchester!mash From: mash@mips.COM (John Mashey) Newsgroups: comp.arch Subject: Re: Integer/Multiply/Divide on Sparc Message-ID: <34058@mips.mips.COM> Date: 3 Jan 90 02:29:29 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@mips.COM Reply-To: mash@mips.COM (John Mashey) Organization: MIPS Computer Systems, Inc. Lines: 30