Re: Byte article - 64 bit Unix

Jeff Millar (
Sat, 26 Oct 1996 16:27:24 -0400

I think we need to distinguish a few things about 64 bit OS's...

Does the user address space have 64 bit addressability?
Do file offsets have 64 bit addressability?
Does the CPU do 64 bit arithmetic?
Do memory move and copy routines use 64 bit at a time?

The first two directly enable a leap to larger applications, but
the latter two just provide some increment in performance.

How does Linux compare vs these quesitons?