Messages in this thread | | | Date | Wed, 19 Dec 2001 11:56:16 -0600 | From | "M. R. Brown" <> | Subject | Re: On K7, -march=k6 is good (Was Re: Why no -march=athlon?) |
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* Benoit Poulot-Cazajous <poulot@ifrance.com> on Wed, Dec 19, 2001:
> > But gcc-2.95,x _supports_ "-march=k6", and we should use that instead of > "-march-i686". >
No, k6 != athlon. IIRC, the i686 optimization is closer to the Athlon than the k6 opt.
> > before the patch : > 1017.92user 261.80system 24:39.89elapsed 86%CPU > 706.33user 160.79system 16:23.61elapsed 88%CPU > 1787.38user 418.76system 43:35.97elapsed 84%CPU > > after the patch : > 1018.42user 253.85system 24:44.68elapsed 85%CPU > 704.89user 151.76system 16:16.14elapsed 87%CPU > 1786.96user 410.76system 43:05.32elapsed 85%CPU > > The improvement in system time is nice. >
Er, there's not much difference...
Curious, what happens when you compile using gcc 3.0.1 against -march=athlon?
M. R. [unhandled content-type:application/pgp-signature] | |