Date: Sun, 24 May 1998 03:00:52 -0500 (EST) From: "John S. Dyson" <dyson@FreeBSD.ORG> To: dwhite@resnet.uoregon.edu Cc: lfloyd@sonic.net, freebsd-questions@FreeBSD.ORG Subject: Re: Compatibility with Ultra IDE drives? Message-ID: <199805240800.DAA00892@dyson.iquest.net> In-Reply-To: <Pine.BSF.3.96.980523235634.9142b-100000@gdi.uoregon.edu> from Doug White at "May 23, 98 11:57:30 pm"
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Doug White said: > > 2.2.5 doesn't, so you get standard old IDE without any UltraDMA > improvement. -CURRENT can grok UltraDMA and can give you the (supposed) > performance boost. > Given you have a very fast machine to start with (like a fast P5 or faster), bus-master DMA does help alot. There is a very noticable difference in responsiveness of the system under load with the DMA. I actually wasn't convinced until I mistakenly built a system without the DMA, and noticed that it was somehow "slow." -- John | Never try to teach a pig to sing, dyson@freebsd.org | it just makes you look stupid, jdyson@nc.com | and it irritates the pig. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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