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SubjectRe: x86 question: Can a process have > 3GB memory?
On Wed, 8 May 2002, Alan Cox wrote:

> Remember DOS and EMM memory expansion. Basically that is what you come
> down to. Allocate multiple large shared memory segments, attach the one
> you need each time and implement software segment swapping.

I remember doing bank switching on IEEE-696 (S-100) system for both
programs and "ramdisk," when 64K (sic) was a lot of memory.

> That should have you diving for an AMD hammer or IA64 box as soon as they
> come out 8)

At the moment Itanium is shipping, it makes up for being expensive by
also being slow ;-) However, Sun will sell you a 64bit UltraSPARC system
with everything but monitor for <$1K. Add a few GB and load Linux. I
*think* you can order with Linux preloaded now, but don't quote me on
that. It's not blindingly fast but it's blindingly cheap.

--
bill davidsen <davidsen@tmr.com>
CTO, TMR Associates, Inc
Doing interesting things with little computers since 1979.

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