Date: Thu, 22 Aug 1996 00:43:47 -0700 From: "Justin T. Gibbs" <gibbs@freefall.freebsd.org> To: Michael Smith <msmith@atrad.adelaide.edu.au> Cc: richard@pegasus.com (Richard Foulk), freebsd-hardware@FreeBSD.ORG Subject: Re: SCSI again: Asus SC200 vs. Adaptec 2940 ... Message-ID: <199608220743.AAA24607@freefall.freebsd.org> In-Reply-To: Your message of "Thu, 22 Aug 1996 12:17:56 %2B0930." <199608220247.MAA13199@genesis.atrad.adelaide.edu.au>
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>The aic7770 appears to handle heavier loads better; this may be because it >keeps its program in local memory (does it?) rather than needing to >fetch an opcode every 1us (as the 53c810 does) across the PCI bus. It >may just be due to better device design. It does have the entire program in ram as do some of the newer NCR (or should I say symbios?) cards. > All through >the first quarter or so of this year Justin was struggling with the >'aic' driver, eventually getting it pretty well right; in the same >period the 'ncr' driver was rock-solid. That's 'ahc' not 'aic'. I haven't rewritten the 'aic' driver yet. 8-) >-- >]] Mike Smith, Software Engineer msmith@atrad.adelaide.edu.au [[ >]] Genesis Software genesis@atrad.adelaide.edu.au [[ >]] High-speed data acquisition and (GSM mobile) 0411-222-496 [[ >]] realtime instrument control (ph/fax) +61-8-267-3039 [[ >]] Collector of old Unix hardware. "Where are your PEZ?" The Tick [[ -- Justin T. Gibbs =========================================== FreeBSD: Turning PCs into workstations ===========================================
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