Subject: Re: PII vs 21164
To: Ray Phillips <r.phillips@jkmrc.uq.edu.au>
From: Manuel Bouyer <bouyer@antioche.eu.org>
List: port-alpha
Date: 05/17/2003 00:04:15
On Fri, May 16, 2003 at 09:00:02AM +1000, Ray Phillips wrote:
> Dear NetBSD/alpha:
>
> Could someone help me to reconcile the fact that running
>
> # cd /usr/src
> # ./build.sh -D ../DistribDir -R ../ReleaseDir release
>
> takes around eleven hours on a 500 MHz PWS with 1 GB RAM but around
> seven hours on a PII with 640 MB RAM?
>
> I don't know how the SPEC values (for example) for the two machines
> compare but I'd have thought and hoped the PWS would be considerably
> faster. Is building an alpha release of NetBSD more "difficult"
> somehow than an i386 release?
Yes, the compiler has to do more work for alpha than i386.
A good test could be to run e.g.
./build.sh -m sparc64 -D ../DistribDir -R ../ReleaseDir release
on both systems.
--
Manuel Bouyer <bouyer@antioche.eu.org>
NetBSD: 24 ans d'experience feront toujours la difference
--