Path: utzoo!yunexus!geac!syntron!jtsv16!uunet!seismo!sundc!pitstop!sun!amdcad!ames!nrl-cmf!cmcl2!rutgers!att!occrsh!psm!jct
From: jct@psm.UUCP (John Tompkins)
Newsgroups: comp.unix.xenix
Subject: DOS under Xenix
Keywords: DOS Xenix VP/IX
Message-ID: <267@psm.UUCP>
Date: 26 Oct 88 13:52:19 GMT
Article-I.D.: psm.267
Organization: Kerr-McGee, Okla. City
Lines: 10

I am interested in running DOS programs under UNIX, probably Xenix,  on a
386 machine using something like VP/IX. I was told by the SUN salesman, whose
386i will also run DOS, that programs using a lot of interrupt driven IO
will run slowly. They say it will be faster in the future but there is a lot
of overhead in the interrupt emulation. Does anyone have experience in 
using interrupts driven IO on any of the DOS emulators for UNIX/Xenix ? I am
looking at about 9600 baud on a serial port and maybe some type of DOS
networking on ethernet or arcnet. Thanks in advance.

John C. Tompkins