alt Hacker News> Why do we even have linear physical and virtual addresses in the first place, when pretty much everything today is object-oriented?
But what happens when the in-memory size of objects approaches 2⁶⁴? How to even map such a thing without multi-level page tables?
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Joker_vD • last Sunday at 8:13 PM
Regions, like [0], for example? Multi-level page tables kinda suck.
[0] https://web.archive.org/web/20250321211345/https://www.secur...
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Findecanor • last Sunday at 8:52 PM
I believe Multics allowed multiple segments to be laid out contiguously. When you overflowed the offset, you got into the next object/segment.
What field do you work in that you’re mapping objects of size 2^{63}? Databases? When I see anything that size it’s a bug.