[WinMac] Re: 8.6 now stable

Leonard Rosenthol(leonardr[at]lazerware.com)
Thu, 25 Nov 1999 21:02:36 -0500

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        That's for sure!

> One good thing about RAMDoubler is that it still blows away MacOS'
>half-assed virtual memory scheme, turning ON file mapping in the process.

        RAMDoubler is an excellent product written by some VERY smart
folks - though newer versions of the MacOS VM do some neat tricks
that RD doesn't. However, I grant that the ability have file
mapping w/o wasting disk space is a GOOD THING!

> I *still* haven't figured out how linux only needs a maximum
>of a 127 MB
>swap partition; yet if you have a Mac with 256 MB of RAM you need a minimum
>of 257 MB of *contiguous* disk space just to turn ON VM

        It has to do with the need of the MacOS to maintain
compatibility with older products and things like "low memory
globals", system heaps, etc.

>to get the benefits
>of file mapping's more efficient use of RAM by only loading the most
>commonly used code in each app.

        That's not what file mapping does, Dan. File mapping allows
a program to refer to the contents of a file as if it was actually in
RAM...

LDR

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