[rescue] Vaxstation 4000VLC
Maciej W. Rozycki
macro at orcam.me.uk
Mon Feb 26 08:24:30 EST 2024
On Sun, 25 Feb 2024, William Barnett-Lewis via rescue wrote:
> Point given. I was coming from a mainly Unix background and was remembering
> that mostly.
>
> > I beg to differ about 24MB of RAM being a limitation on a VAX. In a
> > previous life we ran an 11/750 (roughly 1/12th the speed of the VLC but
> > with much better I/O) with 8MB of RAM, had a dozen people on it every
> > day. Performance was fine, some paging but not bad. (and not too
> > painful with fast I/O) 24MB goes a whole lot further on a VAX than it
> > would on, say, on a SPARC.
Well, the VAX architecture has a much higher code density than any RISC
one, so naturally programs will take less memory/storage space. It also
depends on the quality of compilers of course. Now the amount of space
occupied by data sadly doesn't change between CISC and RISC architectures.
Maciej
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