Date: Sun, 18 Jul 1999 20:47:39 -0700 From: Amancio Hasty <hasty@rah.star-gate.com> To: freebsd-current@FreeBSD.ORG Subject: Re: Question about MTRR boot message Message-ID: <199907190347.UAA82554@rah.star-gate.com> In-Reply-To: Your message of "Mon, 19 Jul 1999 05:25:32 %2B0200." <199907190325.FAA17479@dorifer.heim3.tu-clausthal.de>
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Is a nice feature if you happen to have a fast video card . It speed up writes by four times. Long time ago, tests writing to my Matrox millenium would yield about 20MB/sec. With MTTR enabled -- wrote a litte hack over here to do it -- the same test generated about 80MB/sec create for dumping raw video to my Matrox Millenium. The MTTR stuff is an old hack which some motherboards enabled it automatically for you. So to answer your question , the MTTR stuff is supposed to disabled caching to your VGA card. Cheers > Hi, > > There's the following message in my dmesg: > > "Pentium Pro MTRR support enabled, default memory type is uncacheable" > > I seriously hope that it does not mean that my memory > is not chached... does it? I haven't found any manual > pages or other docs about it. > > (If it matters: I cvsupped and built a -current world > yesterday. It's an SMP box (dual Celeron), which seems > to run fine so far.) > > Regards > Oliver > > -- > Oliver Fromme, Leibnizstr. 18/61, 38678 Clausthal, Germany > (Info: finger userinfo:olli@dorifer.heim3.tu-clausthal.de) > > "In jedem Stück Kohle wartet ein Diamant auf seine Geburt" > (Terry Pratchett) > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-current" in the body of the message -- Amancio Hasty hasty@rah.star-gate.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the messagehelp
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