Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!batcomputer!cornell!vax5.cit.cornell.edu!hd7x
From: hd7x@vax5.cit.cornell.edu (Sanjay Aiyagari)
Newsgroups: comp.os.os2.misc
Subject: Re: OS/2 2.0 is here! vs Windows 3.0 vs NeXT/MACH
Message-ID: <1991May8.191038.4603@vax5.cit.cornell.edu>
Date: 8 May 91 19:10:38 EDT
References: <s03gry#@rpi.edu> <1991May6.171205.9611@watson.ibm.com> <066gx8m@rpi.edu> <1991May7.164109.13128@amd.com> <-47gvh+@rpi.edu>
Summary: Magic in OS/2 2.0
Keywords: Magic Windows Speed
Distribution: comp
Organization: CIT, Cornell University
Lines: 16

In article <-47gvh+@rpi.edu>, barryf@aix01.aix.rpi.edu (Barry B. Floyd) writes: 
> compelled to run what I got on top of OS/2. Unless some mighty special 
> magic is performed by OS/2, I suspect Win 3.0/DOS app's running on top
> of OS/2 will not perform better than running as is in their native
> environment.

There are special pieces of magic performed by OS/2 2.0.  One of them, I
remember reading about in a recent PC Week, was that Micrografx was working
with IBM on the interface between Windows apps and the PM.  Since the PM code
will all be 32-bit, when a Windows app makes a call to a particular function,
that function will be executed as 32-bit code.  Of course, this won't perform
as well as true 32-bit code (for the whole application) but it does seem
plausible that if this is the case, then certain Windows apps could perform
slightly better than under Windows itself (where everything is 16-bit).

Sanjay Aiyagari (hd7x@vax5.cit.cornell.edu)