64-bit file sizes (was More Alpha AXP Performance Numbers)

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Article #11298

#11298

From: Chris Torek
Date: Thu, 19 Nov 1992 18:32

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(N.B.: this has little relevance to comp.arch.  Followups should probably
be directed elsewhere, not that there should really be any followups.)

In article <1992Nov17.041026.27756@ntuix.ntu.ac.sg> eoahmad@ntuix.ntu.ac.sg
(Othman Ahmad) writes:
>... With current 32-bit BSD unix, it can only access 2Gbyte addresses.

Current BSD Unix (4.4BSD-alpha) has 64-bit sizes.  There are still
some internal limits from 32-bit `block' numbers, but the external
interface provides signed 64-bit offsets.

>Must be a 64-bit version of Unix or VMS. Will it cause problems in
>porting software to apha?

From experience, yes.  The breakage is easy to fix once detected, but
does occur.
-- 
In-Real-Life: Chris Torek, Lawrence Berkeley Lab CSE/EE (+1 510 486 5427)
Berkeley, CA		Domain:	torek@ee.lbl.gov

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Path: arc1-ca.pugleaf.net!sparky!uunet!stanford.edu!agate!dog.ee.lbl.gov!horse.ee.lbl.gov!torek
From: torek@horse.ee.lbl.gov (Chris Torek)
Newsgroups: comp.arch
Subject: 64-bit file sizes (was More Alpha AXP Performance Numbers)
Date: 19 Nov 1992 18:32:14 GMT
Organization: Lawrence Berkeley Laboratory, Berkeley
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