lkml.org 
[lkml]   [2002]   [Dec]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: Why does C3 CPU downgrade in kernel 2.4.20?
From
Date
Am Die, 2002-12-10 um 06.52 schrieb Dave Jones:

> I believe someone (Jeff Garzik?) benchmarked gcc code generation,
> and the C3 executed code scheduled for a 486 faster than it did for
> -m586
> I'm not sure about the alignment flags. I've been meaning to look
> into that myself...

Interesting. I have no clue about which C3 you're talking about here but
a VIA Ezra has all 686 instructions including cmov and thus optimising
for PPro works best for me.

Prolly I would have to do more benchmarking to find out about aligment
advantages.

--
Servus,
Daniel
[unhandled content-type:application/pgp-signature]
\
 
 \ /
  Last update: 2005-03-22 13:31    [W:0.086 / U:1.360 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site