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From: cy@ashtate (Cy Shuster)
Newsgroups: comp.sys.ibm.pc
Subject: Re: DOS 3.2 and DOS 3.3
Message-ID: <326@ashton.UUCP>
Date: Wed, 26-Aug-87 13:47:56 EDT
Article-I.D.: ashton.326
Posted: Wed Aug 26 13:47:56 1987
Date-Received: Sat, 29-Aug-87 09:56:15 EDT
References: <2755@husc6.UUCP>
Reply-To: cy@ashtate.UUCP (Cy Shuster)
Organization: Ashton-Tate, Torrance, CA
Lines: 29
Keywords: disk cache IBMCACHE.SYS DOS 3.3
Summary: The disk cache is worth looking at...

In article <2755@husc6.UUCP> whitney@husc4.UUCP (glen whitney) writes:
>
>	I am currently using MS-DOS 3.20, and I would like to know if it is
>worth upgrading to PC-DOS 3.3.

There are a handful of new features which have been pretty well discussed:
being able to "call" batch files (and have them return properly to the
caller), the ability to suppress any line from echoing by preceding with
an "@" sign, some improvements to xcopy (automatic creation of subdirectories
with /S -- unless that's already in 3.2?).

There are two performance features which have not been widely discussed:
FASTOPEN and IBMCACHE.SYS. FASTOPEN is a resident program, which takes a
disk drive as an argument from the command line. I don't know what it does:
buffers the FAT, maybe.

IBMCACHE.SYS is a disk cache, with a configurable size. It may not actually
be part of DOS 3.3: on the PS/2s, it is supplied on the demonstration disk
along with the diagnostics and "Learning the PS/2". It, uh, seems happy on
my AT, though...

And now the down side: the press has had reports of people collecting a
variety of bugs in it. From what I read, seemed like even more than 3.2
and its equal size collection of DISKCOPY patches. But my own experience
with it for the last several months has been great - no problems at all.
Guess you can't believe everything you see in the press ;-)! (please, no
coupons from the Oracle ad!)

--Cy--   cy@ashtate.CSS.GOV     ...!seismo!scgvaxd!ashtate!cy