From owner-freebsd-questions Fri Dec 31 15:36:20 1999 Delivered-To: freebsd-questions@freebsd.org Received: from smtp.nwlink.com (smtp.nwlink.com [209.20.130.57]) by hub.freebsd.org (Postfix) with ESMTP id 6F71A14F08 for ; Fri, 31 Dec 1999 15:36:18 -0800 (PST) (envelope-from rjoseph@nwlink.com) Received: from nwlink.com (ip46.r5.d.bel.nwlink.com [207.202.173.46]) by smtp.nwlink.com (8.9.3/8.9.3) with ESMTP id PAA10771; Fri, 31 Dec 1999 15:36:16 -0800 (PST) Message-ID: <386D3D3C.C92D02A3@nwlink.com> Date: Fri, 31 Dec 1999 15:33:16 -0800 From: R Joseph Wright X-Mailer: Mozilla 4.51 [en] (X11; I; FreeBSD 3.4-STABLE i386) X-Accept-Language: en MIME-Version: 1.0 To: Kent Stewart , freebsd-questions@FreeBSD.org Subject: Re: some performance issues References: <386C023E.680FC31@inna.net> <386C0676.F39EC477@3-cities.com> <386C2354.ABD1ED54@nwlink.com> <386C3173.1D695393@3-cities.com> <386C543D.6E59C9DF@nwlink.com> <19991231104441.C2609@emu.sourcee.com> <386CE8AB.29A140B5@nwlink.com> <386CF9DC.B71A9887@3-cities.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Kent Stewart wrote: > > You really should print a copy of the LINT file and look at it while > you are reading this stuff. The ff tells the system to try and read > ahead 15 sectors. You add all of this together and you can easily > speed up your disk access 4x or more. > > Kent > > R Joseph Wright wrote: > > > > "Norman C. Rice" wrote: > > > > > > On Thu, Dec 30, 1999 at 10:59:09PM -0800, R Joseph Wright wrote: > > > > > > > > > > > > > > The 0x2000 allows IDE DMA transfers and that could be part of your > > > > > problem. Some drives like that setting and some systems don't. It is > > > > > something that you can try by seting it at boot time. If it works, > > > > > then you build it into your kernel. My drives are all 0xa0ffa0ff. > > > > > 8+2=a. > > > > I recompiled my kernel and changed the flags from 0x80ff80ff to 0xa0ffa0ff. What is a good program to use to see if I can really tell a difference? I tried out some of my bigger programs like star office and gimp. Star Office still took a little while to load, gimp seemed to fly (when it wasn't crashing). Thanks a lot for all the help. I'm starting to understand the hexadecimal thing a bit more now. Joseph -- You will do foolish things, but do them with enthusiasm. Colette. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message