To: opendos AT delorie DOT com
Message-Id: <AAfV1OrC11@insect.ief.spb.su>
Organization: Inst. of Evolutionary Physiology & Biochemistry,
    St.Petersburg
From: pavel AT insect DOT ief DOT spb DOT su (Pavel Ozerski)
Date: Mon, 18 May 98 14:13:45 +0300
Reply-To: pavel AT insect DOT ief DOT spb DOT su
Subject: Re: QEMM and DR-DOS, Re: Memory optimization help
Precedence: bulk

I will report my experience in DR-DOS memory configuring and
answer to some questions about memory management.

The smallest HISHELL SIZE=... value to load the native 7.02 COMMAND.COM
into HMA is 2160.

The QDK DOS-UP feature is not compatible with DR-DOS 7.02.
If you use QEMM with DR-DOS 7.02 then (as I think) you can make much free
conventional memory without using DOS-UP.SYS (use HIFILES, HIFCBS, HISTACKS,
HISHELL instead). As I found, you can also use QEMM without QDeck LOADHI.SYS and
LOADHI.COM (at least if you don't use stealth mode): HIDEVICE and HILOAD
can very good understand QEMM's UMBs. But please don't mix HIDEVICE/HILOAD
and LOADHI.* in the same system. Also using QDK Optimize is not unnecessary.
The result of Optimize on my computer is not better than using only DR-DOS
hiloading. Also (HI)INSTALL will be possible (this feature is incompatible
with DOS-UP).
I have 626K (602 under Windows 3.11) of available conventional memory with
DPMS loaded and without QDK LOADHI (in the UMB's are localized: the WfW
IFSHLP.SYS, SETVER, the mouse driver, the third-party cyrillic support driver,
SHARE, NWCACHE and Norton Commander).

Note: if you use QEMM with DR-DOS hiloading don't use SHARE /MH;
HILOAD SHARE works OK and loads it into HMA if possible.


My QEMM loading lines in CONFIG.SYS:

YEAR2000=OFF
DEVICE=C:\QEMM\QEMM386.SYS RAM R:2 I=F000-F6FF
YEAR2000=ON

The trick with YEAR2000 is necessary for the QuickBoot support.
DOS=HIGH,UMB must be after QEMM386.SYS loading.
To resolve memory management / WfW network conflict HISTORY must be ON
(cause - ?!)

-- 
Pavel V. Ozerski            | Inst. of Evolutionary Physiology & Biochemistry,
office +7 (812)552-6870(291)|           Russian Academy of Sciences,
FAX    +7 (812)552-3012     |  Thorez pr. 44, St.Petersburg, 194223, Russia
home   +7 (812)528-5576     |          E-mail:  pavel AT insect DOT ief DOT spb DOT su