Date: Fri, 25 Oct 1996 20:52:38 -0400 (EDT) From: Mark Mayo <mark@quickweb.com> To: Satoshi Asami <asami@FreeBSD.org> Cc: rgrimes@gndrsh.aac.dev.com, ejs@bfd.com, michaelv@MindBender.serv.net, scrappy@ki.net, current@FreeBSD.org, smp@FreeBSD.org Subject: Re: Recommendations... Message-ID: <Pine.BSF.3.94.961025204740.16038B-100000@vinyl.quickweb.com> In-Reply-To: <199610252255.PAA29409@sunrise.cs.berkeley.edu>
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On Fri, 25 Oct 1996, Satoshi Asami wrote: > * What low memory bandwidth on the Natoma??? That thing smokes when comparied > * to a 430HX chipset. > > That contradicts our findings. A P5-133 with Triton or Triton II can > move 70-80MB/s (depending on EDO or non-EDO), but I can't get more > than 45MB/s out of a P6-200 with Natoma/server (at least that's what > Intel told us). That's odd, here are my speeds on a P6-200 with Natoma (440fx)/server board straight from intel: Function Rate (MB/s) RMS time Min time Max time Copy: 76.1639 0.0633 0.0630 0.0648 Scale: 75.5894 0.0636 0.0635 0.0638 Add: 81.3670 0.0886 0.0885 0.0887 Triad: 80.6036 0.0894 0.0893 0.0896 And that was with 12 users logged in and the load at .23. I'd imagine it would be a little faster (~85 MB/s perhaps) in single user mode. It's using 60ns parity RAM. Even my workstation I'm sitting on (a first generation Pro 150 from Digital, 450GX server chipset - funky!!) gets about 65 MB/s average on the STREAM tests. If you're PPro is only doing 45 MB/s, it's time to bring it back and get a new one!! -mark ------------------------------------------- | Mark Mayo mark@quickweb.com | | C-Soft www.quickweb.com | ------------------------------------------- "To iterate is human, to recurse divine." - L. Peter Deutsch > > Satoshi > > P.S. Details on "http://now.cs.berkeley.edu/Td/bcopy.html". >
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