Date: Sun, 25 Aug 1996 18:43:53 -0700 From: "Michael L. VanLoon" <michaelv@MindBender.serv.net> To: Michael Hancock <michaelh@cet.co.jp> Cc: Warner Losh <imp@village.org>, current@freebsd.org Subject: Re: Speedingup the "worldstone" Message-ID: <199608260143.SAA12137@MindBender.serv.net> In-Reply-To: Your message of Mon, 26 Aug 96 09:49:09 %2B0900. <Pine.SV4.3.93.960826093906.6723G-100000@parkplace.cet.co.jp>
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>I think you've already done things nicely by spreading out the disk i/o,
>compiles are also CPU intensive so the x486 looks like your bottle neck.
>I'm skepical that you can really get the disks singing in harmony to take
>advantage of Ultra Wide. Though it's generally a good thing to have
>advances in bus architectures so that it puts pressure on the peripherals
>to catch up.
I can tell you, for a fact, that you won't get Ultra Wide bandwidth
out of a 486 on real filesystem data. The 486 design just doesn't
have enough power. The best you'll probably do, on real-world use, is
maxing out fast SCSI (10MB/s), and then only if you tune well.
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Michael L. VanLoon michaelv@MindBender.serv.net
--< Free your mind and your machine -- NetBSD free un*x >--
NetBSD working ports: 386+PC, Mac 68k, Amiga, Atari 68k, HP300, Sun3,
Sun4/4c/4m, DEC MIPS, DEC Alpha, PC532, VAX, MVME68k, arm32...
NetBSD ports in progress: PICA, others...
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