Article View: comp.arch
Article #22360Re: MC68040 benchmark claims
From: David Trissel
Date: Mon, 12 Feb 1990 08:20
Date: Mon, 12 Feb 1990 08:20
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1287 bytes
In article <35816@mips.mips.COM> crisp@mips.COM (Richard Crisp) writes: >> is 23,148 KDhrys. The MC68040 runs that benchmark at twice the speed. > >Dave, would you describe the environment (hardware, software, clock rate, >memory access time (in clock cycles)) for the 68040 system whose performance >you quote? As has been stated time and again in this forum, without such >data benchmark results are meaningless. The benchmark time is for a 25 Mhz MC68040. The software is the MC68UCC4.2 C compiler with -O and #include string.h (inline strings.) External memory times have no effect on the execution time of Dhrystone on any MC68040 system. This is because the benchmark runs entirely out of the MC68040 on-chip cache. -- Dave Trissel - Motorola Semiconductor, Austin
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!uunet!wuarchive!cs.utexas.edu!oakhill!davet From: davet@oakhill.UUCP (David Trissel) Newsgroups: comp.arch Subject: Re: MC68040 benchmark claims Message-ID: <2942@oakhill.UUCP> Date: 12 Feb 90 08:20:48 GMT References: <8859@portia.Stanford.EDU> <5190@convex.convex.com> <1850@cbnewsi.ATT.COM> <2938@oakhill.UUCP> <35816@mips.mips.COM> Reply-To: davet@oakhill.UUCP (David Trissel) Organization: Motorola Inc., Austin, Texas Lines: 15