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On Sun, 30 Jun 2024 10:44:34 -0000 (UTC)
Thomas Koenig <tkoenig@netcologne.de> wrote:
>John Dallman <jgd@cix.co.uk> schrieb:>In article <87ed8e7os5.fsf@localhost>, lynn@garlic.com (Lynn
Wheeler) wrote:
back to IBM decision to add virtual memory to every 370 ... aka MVT>
storage management was so bad that regions had to be specified four
times larger than used
What was the problem with the memory management? My experience of
systems without virtual memory doesn't include any that shared the
machine among several applications, so I have trouble guessing.
Imagine a process which resides at a certain address. It contains
code, data, and pointers to data. Now you swap it out and want
to reload it. You can use the same base address, then everything
is fine. Or you can use a different one, where do the pointers
point, especially registers which contain addresses?
>
Why would I want to use different address?
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