Messages in this thread | | | From | Denis Vlasenko <> | Subject | Re: Why does C3 CPU downgrade in kernel 2.4.20? | Date | Wed, 11 Dec 2002 11:19:23 -0200 |
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On 10 December 2002 05:22, Daniel Egger wrote: > 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.
I heard cmovs are microcoded in Centaurs.
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