Xref: utzoo comp.sys.mac:11294 comp.sys.intel:389 comp.sys.m68k:683 rec.humor:9191
Path: utzoo!mnetor!uunet!seismo!sundc!pitstop!sun!oliveb!icoven!ilcu
From: ilcu@icoven.olivetti.com (Daniela Papa)
Newsgroups: comp.sys.mac,comp.sys.intel,comp.sys.m68k,rec.humor
Subject: Re: Article in Computer Currents (Dec 87)
Message-ID: <13161@oliveb.olivetti.com>
Date: 18 Jan 88 16:04:58 GMT
References: <964@csun.UUCP> <1962@pdn.UUCP> <2513@dasys1.UUCP>
Sender: news@oliveb.olivetti.com
Reply-To: ilcu@icoven.UUCP (Daniela Papa)
Organization: Olivetti ATC; Cupertino, Ca
Lines: 8
Keywords: 80386 68030 Apple Intel Motorola


I am writing a VM that runs a copy of MS-DOS as a V86 task, my problem is
the drastic decrease in performances. A hexdump without VM runs in about
17 seconds but takes 40 with my VM. I do nothing special, just
reflects all interrupts to the original handler. How can I speed up
my VM; I was thinking to run it at cpl 3 but I loose the ability to catch
some I/O operations that I nead to process. What have I missed in the 386
manual?