Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!decwrl!sun!pitstop!sundc!seismo!uunet!mcrware!pgthor!dev386!beckman
From: beckman@dev386.UUCP (Zacharias Beckman)
Newsgroups: comp.windows.ms
Subject: Re: windows/386 questions
Summary: Windows/386 Memory Swapping
Keywords: save virtual machine to disk?  printer crashing
Message-ID: <440@dev386.UUCP>
Date: 6 Mar 89 13:52:06 GMT
References: <1247@sdcc15.ucsd.edu>
Distribution: na
Organization: University of Iowa, Iowa City
Lines: 26

In article <1247@sdcc15.ucsd.edu>, pa1022@sdcc15.ucsd.edu (pa1022) writes:
> 2) Would it be possible to suspend a virtual machine, and then save
>    it to disk as a temporary file?  Then I could use the memory that
>    virtual machine had, until I load it from disk and resume it.  A
>    program that I leave running, sometimes for days, will not let me
>    exit it in the middle and pick up where I left off.  Sometimes I
>    would like to be able to pause it and free the memory it is
>    hogging.  Any chance that future versions of Win/386 will have
>    any capabilities like this?

The current version of Windows/386 (version 2.10) does not support this sort
of operation.  That is one of the drawbacks of Windows/386 -- it does not
make full use of the 80386 processor.  The processor is fully capable of
automatically (at least to the user) of swapping code to disk as needed; a
virtual RAM system, much like the designs used by Unix implementations.  I
believe that Windows/386 3.0 MAY have some of this capability, but I'm not
at all certain.  OS/2 does, and therefore the Presentation Manager, if I am
not mistaken.

Zacharias J. Beckman   ...   gatech!mdt!pgthor!dev386!beckman
                       ...   uunet!mcrware!pgthor!dev386!beckman
(319) 354-5116               (319) 351-1993

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