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List:       freebsd-hackers
Subject:    Re: 5-STABLE kernel build with icc broken
From:       Alexander Leidinger <Alexander () Leidinger ! net>
Date:       2005-03-29 11:23:09
Message-ID: 20050329132309.v3ylwk2pesk8g80c () netchild ! homeip ! net
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jason henson <jason@ec.rr.com> wrote:

> >Various:
> > - auto-vectorizer (no benefit for the kernel, since we can't use >  
>  FPU/SIMD instructions at any time... yet (interested hackers can
> >   have a look how DragonFly handles it, I can provide the necessary
> >   commit logs))
> >  >
> Are you implying DragonFly uses FPU/SIMD?  For that matter does any kernel?

AFAIK DragonFly _allows_ code to use the FPU/SIMD in the kernel. And AFAIR
they use SIMD in b{copy,zero} (we do this too, but we do this is in a
"controlled environment" whereas DFly just allows the use of FPU/SIMD in an
"use as you like" manner everywhere).

Bye,
Alexander.

-- 
http://www.Leidinger.net  Alexander @ Leidinger.net: PGP ID = B0063FE7
http://www.FreeBSD.org     netchild @ FreeBSD.org  : PGP ID = 72077137
                           Closet extrovert.


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