Subject: Fw: What about processor type?
From: Dan Cook (inundata@hotmail.com)
Date: Fri Feb 15 2002 - 04:40:28 MST
----- Original Message -----
From: "Griff Miller II" <griff.miller@positron.com>
Newsgroups: comp.os.linux.powerpc
Sent: Friday, February 15, 2002 2:29 AM
Subject: What about processor type?
> In the x86 world, you find packages like binutils-2.11.93.0.2-2.i386.rpm
> or binutils-2.11.93.0.2-2.i586.rpm and so on. In other words, optimized
> for a particular processor type.
>
> In the PowerPC world, everything is just "ppc" . So what happens when
> I install a package on my PPC604 machine that was compiled/linked on a
> G3 or G4 machine?
>
> Conversely, are the people with G3/G4's getting all the performance they
> should if they install a package I compiled on my lowly 200MHz 604 ?
>
> Maybe instead of "ppc" in the package name, we could have done p604/g3/g4
> or whatever.
>
> I guess I bring it up because in the past I've noticed that certain
packages
> run really slowly on my 604 machine. Then, if I compile from source
myself,
> they work much better. My baseless suspicion is that they were G3/G4
optimized.
> And what in the world is "Altivec" ? G3/G4 stuff?
>
> Is it possible to determine if a particular executable/lib has been
optimized
> for a processor type? I tried the "file" command, but it doesn't seem to
> help. Either that, or all my execs/libs are of the same processor type. :)
>
> Thanks for listening.
>
> P.S. Email cc's welcomed and appreciated.
>
> --
> Griff Miller II
> Manager of Information Technology
> Positron Corporation "I need to be the owner of all of
> griff.miller@positron.com the files in /usr/kvm." -Anonymous
User
Griff Miller on comp.os.linux.powerpc posted this, and I thought I would
forward it here because he raises a valid point: just how _do_ you know?
Maybe one of you have an answer for him (and me, now that it has piqued my
interest :)
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