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From: w8sdz@rigel.acs.oakland.edu (Keith Petersen)
Newsgroups: comp.os.msdos.desqview
Subject: Re: Recommendations for cache under Desqview?
Message-ID: <6450@vela.acs.oakland.edu>
Date: 17 May 91 09:58:08 GMT
References: <1991May16.022630.20602@cbnewsh.att.com>
Sender: news@vela.acs.oakland.edu
Reply-To: w8sdz@wsmr-simtel20.army.mil
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Organization: Detroit Download Central
Lines: 56

wolf@cbnewsh.att.com (thomas.wolf) writes:
>I've tried: SMARTDRV, PowerPak, and Hyperdisk on my 386 compatible.
>Although SMARTDRV is supposed to be the dummest of the bunch, under
>Desqview, it is significantly faster than the other two (my "benchmark"
>is a "make" of a program) -- or I should say that the other two become
>slower than SMARTDRV under Desqview.
>I have a 4Meg machine.  I tried these three caches with identical
>size: 1Meg.
>
>Has anyone noticed similar behaviour with these programs?  Has anyone
>found an optimal set of options to be used with either Hyperdisk
>or PowerPak?  (Since I already bought the latter, I'd be especially
>grateful...sorry no monetary rewards :-)

I am a registered user of HyperDisk with DESQview.  My 386/16 has one
meg below and one meg above for a total of two meg of RAM.

I talked to Roger Cross (the author) to ask him what he recommends for
DESQview.  The key is to set your buffers to 5 with no /X option.  The
/X option causes DOS to automatically allocate 30 buffers no matter
how small a number you specify.

My CONFIG.SYS:

DEVICE=C:\QEMM\QEMM386.SYS RAM ROM
DEVICE=C:\QEMM\LOADHI.SYS /R:1 C:\BIN2\NANSI.SYS
DEVICE=C:\QEMM\LOADHI.SYS /R:2 C:\BIN2\HYPERDKX.EXE HS C:920:256 T:3
INSTALL=C:\QEMM\LOADHI.COM /TSR /R:1 C:\DOS\SHARE.EXE
SHELL=C:\COMMAND.COM /P /E:512
BREAK=OFF
BUFFERS=5
STACKS=0,0
FILES=8
LASTDRIVE=C

And in AUTOEXEC.BAT:

C:\QEMM\LOADHI /R:1 QEMM\FILES 30

This is MS-DOS 4.01.  If you are using an earlier version, move the
"INSTALL" line to AUTOEXEC.BAT (deleting the INSTALL= at the start of
the line).

Notice the HYPERDKX command.  It specifies a 920K cache while I'm not
running DESQview, and 256K while in DESQview.  Also specified are
cache hard disk only, staged writes on, writes delayed until 3 seconds
of no activity.  The T3 made quite a difference, especially during
high speed serial communications (I use a USR HST Dual-Standard modem
with the interface locked at 19200).

Keith
- - - 
Keith Petersen
Co-SysOp, Detroit Download Central 313-885-3956 (212/V22bis/HST/V32/V42bis)
Internet: w8sdz@vela.acs.oakland.edu,  w8sdz@eddie.mit.edu,  w8sdz@brl.mil
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