Date: Tue, 02 Feb 1999 17:34:34 +0100 From: Matthias Paul Subject: Re: DR-DOS Memory Maximizing? To: opendos AT delorie DOT com Message-id: Organization: Rechenzentrum RWTH Aachen X-Mailer: Pegasus Mail v3.22 Reply-To: opendos AT delorie DOT com On Sat, 30 Jan 1999 Dean Dancey wrote: > Can anyone give me some pointers on getting the most memory out of > DR-DOS?? Does it offer anything akin to MEMMAKER??? Or QEMM??? What I > have so far, sucks. -Dean Dancey Though there is no memory optimizer provided with DR-DOS you can still run MEMMAKER on DR-DOS (not recommended). While this may give you some improvement, in most cases it will still be sub-optimal. There is no better and more reliable way to fine-tune a system than trial-and-error by editing the configuration files itself (have a boot disk at hands!!! ;-). Getting the most out of your system is a compromise between memory usage, speed, and easyness, but ideally DR-DOS can give you a maximum of ca. 720 Kb continuous conventional memory (using MEMMAX +V on a MDA or Hercules card only), plus upper memory (depends), plus 63 Kb HMA, plus extended memory above 1 Mb. While a number of general rules of thumb can be given (like - very basically - : loading everything high, shrinking unnecessary data structures), memory optimization highly depends on the hardware (which CPU and system architecture, which AddOn cards, etc.), ROM-BIOS setup, and the drivers and TSRs to be loaded, and last but not least the applications to be run. And it will always be an iterative process. It may take a while to study, but you will find tons of tips in the backlogs (since 1997) of this and Caldera's DR-DOS/OpenDOS mailing lists. If you'd provide the necessary info on your hardware and post your [D]CONFIG.SYS/AUTOEXEC.BAT/NET.CFG etc. files, we might be able to guide you to much better point of start for your setup. BTW, how much free memory do you have right now (MEM /A > mem.lst)? Matthias ------------------------------------------------------------------- Matthias Paul, Ubierstrasse 28, D-50321 Bruehl, Germany eMail: Web : http://www.rhrz.uni-bonn.de/~uzs180/mpdokeng.html -------------------------------------------------------------------