Date: Fri, 31 May 1996 13:04:33 +0200 (MESZ) From: "Hr.Ladavac" <lada@ws2301.gud.siemens.co.at> To: plm@xs4all.nl (Peter Mutsaers) Cc: questions@freebsd.org Subject: Re: SCSI bounce buffers Message-ID: <199605311104.AA202380673@ws2301.gud.siemens.co.at> In-Reply-To: <199605310523.HAA02516@plm.xs4all.nl> from "Peter Mutsaers" at May 31, 96 07:23:14 am
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In his e-mail Peter Mutsaers wrote: > > Hello, > > I have an Adaptec 1542 and 16 MB RAM. > > I want to get more RAM. This means I'll have to start using bounce > buffers, or buy a newer SCSI interface (PCI, like Adaptec 2940). > > Would using bounce buffers give a lot of slowdown? Is it really > worthwhile to avoid it and buy a new SCSI interface. Also, would an > Adaptec 2940 bring me a lot of extra performance when compared to my > current 1542? Well, it's a double edged sword--damned if you do, damned if you don't. Bounce buffers *are* a hit. 16 megs vs. 20 or more is an even worse hit. Your call :) A PCI SCSI controller is almost an order of magnitude faster than the ISA one. OTOH, if you don't have any PCI slots on your MB... /Marino > > I hope someone can advise me on this matter. Thanks, > > -- > ______________________________________________________________________ > Peter Mutsaers | Abcoude (Utrecht), | "Quod licet bovis, > plm@xs4all.nl | the Netherlands | non licet Jovi." >
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