Author: Robert Hyatt
Date: 19:34:41 12/25/02
Go up one level in this thread
On December 24, 2002 at 10:55:17, Vincent Diepeveen wrote: >On December 24, 2002 at 04:47:21, Frank Phillips wrote: > >>On December 23, 2002 at 12:12:29, Vincent Diepeveen wrote: >> >>>On December 23, 2002 at 12:01:10, Robert Hyatt wrote: >>> >>>You forget the crucial data point and that's that you have >>>no AMD K7s out there. >> >>Intel is about 30% faster than gcc3.2 (and gcc2.95 and gcc 2.96) with profile >>guided optimisation for me on my AMD Athlons (Palomino and Thoroughbred). Not >>all of this can be due to incompetence, I suggest. >> >>Frank > >you must be using bitboards then. No other option possible. >profile guided optimization speeds me up 20% at k7 with gcc 3.x > How can you possibly say "no other option possible"??? Intel _also_ does profile-guided optimizations. But I can think of _lots_ of reasons why he might get better results than you get. Starting with his programming style which might be _better_...
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