🚀 go-pugleaf

In article <1993Jan22.033537.19302@rock.concert.net> toddwall@rock.concert.net (R. Todd Wall -- Catholic Diocese of Raleigh -- Computer Services) writes:
>
>	I have Windows 3.1 running on a 386-25 w/ 2 megs of RAM.  When I run
>windows it creates approximately 2 megs of virtual memory.  The manual says
>I can set up to 7 megs of virtual memory, but it won't let me.  Why???
>
>	Oh, one more thing.  I'm running QEMM 6.0....

Two things come to mind.

1.  A permanent swap file needs CONTIGUOUS space on the disk.  You may
    need to defragment your free space.  (This does not apply to
    temporary swap files.)

2.  On a machine with limited memory, Windows will not create a large
    virtual address space without prodding.  In the [386enh] section of
    SYSTEM.INI, add (or change) the parameter: "PageOverCommit=nn".
    This specifies a factor by which the amount of available physical
    memory will be multiplied to determine the size of the virtual
    address space.  The default value is 4.  (The Windows Resource Kit
    claims that the available memory size is rounded up to a multiple
    of 4 MB before being multiplied.  I have observed behavior that
    appears to contradict this claim.)

On a 2MB machine, #2 is probably your problem.  You can force Windows
to create more virtual memory, but your machine will really crawl.
Most prople consider 4MB of physical memory the minimum necessary to do
anything useful under Windows.

Bob Nichols
AT&T Bell Laboratories
rnichols@ihlpm.ih.att.com