fouts@bozeman.ingr.com (Martin Fouts) (06/09/90)
In article <2286@crdos1.crd.ge.COM> davidsen@crdos1.crd.ge.COM (Wm E Davidsen Jr) writes:
[Anything you can do with virtual pages I can do with segments.]
True. But the granularity is a killer, and you frequently run out of
segment descriptors a lot more quickly than you run out of page table
entries. (I've used literally dozens of shared libraries.)
In spite of that, I believe that 95% of all programs on all computers
(by number rather than CPU cycles) will run in 4MB of address space.
And probably 95% in 16MB. There are not a lot of applications which
need the huge memory, and that means a small market, few vendors, high
prices, etc. Adam Smith walks here, too.
maybe true. I certainly have written a lot of small programs. But
its the big ones that are interesting (;-)
--
Martin Fouts
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If you can find an opinion in my posting, please let me know.
I don't have opinions, only misconceptions.