Aucbvax.4885
fa.editor-p
utzoo!decvax!ucbvax!editor-people
Sun Nov  1 21:23:17 1981
Re: Small Address Space
>From Goldberg@RUTGERS Sun Nov  1 21:14:05 1981
One is always dealing with a problem for which a larger address space is
advantageous.  Any program on the 20 uses paging, whether it knows it or
not.  I don't think that constricts the programmer as RMS implies, nor
is it terribly slow.  It turns out that the system demand pager is not
nearly as smart as the editor in determining what to page, as you will
realize after considering what happens on two consecutive searches
through an entire buffer that does not fit in physical memory.

So the question is not whether disk paging should be done, but rather
who should do it.  I think RMS will agree that if ITS TECO provided a
virtual buffer space that was larger than the 20's address space and
whose paging was invisible at the level of TECO code, there would be no
serious impact on user-written extensions.
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