Date: Fri, 29 May 1998 21:45:28 -0500 (EST) From: "John S. Dyson" <toor@dyson.iquest.net> To: dwhite@resnet.uoregon.edu Cc: grog@lemis.com, dyson@FreeBSD.ORG, lfloyd@sonic.net, freebsd-questions@FreeBSD.ORG Subject: Re: Compatibility with Ultra IDE drives? Message-ID: <199805300245.VAA05002@dyson.iquest.net> In-Reply-To: <Pine.BSF.3.96.980526201921.13318U-100000@gdi.uoregon.edu> from Doug White at "May 26, 98 08:19:40 pm"
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> On Mon, 25 May 1998, Greg Lehey wrote: > > > > Disk Elapsed User System > > > > DORS 126m22.811s 66m2.051s 16m28.411s > > DHEA 124m54.116s 65m3.465s 18m50.257s > > DHEA/Ultra 111m21.743s 66m24.344s 18m37.329s > > Yeah, but were you doing anything at the time? > > IDE kills interactive response. > If (IDE && simple loads) if (IDEDMA) then FAST else SLOW (with lots of CPU usage) If one doesn't enable DMA for IDE nowadays, the only reasonable excuse is hardware. In some cases, IDE without DMA will seem okay, but when the system is loaded, you'll wonder where all of your CPU has gone :-). John To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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