Author: James T. Walker
Date: 15:51:09 01/06/99
I was running some test today on Crafty when I decided to install it on my AMD K6-2 computer which runs at 350 Mhz. I set crafty(15.20) up to run a problem on both computers to compare speeds. The Pentium II @ 333 Mhz runs Crafty twice as fast as the K6-2-350. Can you explain the large difference in speed between the two machines? I have done this test on other programs and usually the K6-2 is 10-20% faster than the Pentium II. So the Pentium II running Crafty at twice the speed is really a shocker. I tried Crafty 16.3 also. Same thing. Two logs listed below. hash table memory = 48M bytes. pawn hash table memory = 10M bytes. game/30 minutes primary time control Crafty v15.20 White(1): edit +---+---+---+---+---+---+---+---+ 8 | | | | | | *K| | | +---+---+---+---+---+---+---+---+ 7 | | | | | | | | | +---+---+---+---+---+---+---+---+ 6 | | | | | | | | | +---+---+---+---+---+---+---+---+ 5 | | | | | | | | | +---+---+---+---+---+---+---+---+ 4 | | P | | | | | | | +---+---+---+---+---+---+---+---+ 3 | | | | | | | | | +---+---+---+---+---+---+---+---+ 2 | | | | | | | | | +---+---+---+---+---+---+---+---+ 1 | | | | K | | | | | +---+---+---+---+---+---+---+---+ a b c d e f g h White(1): display White(1): go end-game phase clearing hash tables time limit 51.42 (5:08) depth time score variation (1) 9 0.07 2.21 1. Ke2 Ke7 2. Ke3 Kd7 3. Kd4 Kd6 4. b5 Kc7 5. Kc5 9 0.08 ++ 1. Kc2!! 9 0.08 7.12 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc6 4. Ka5 Kd5 5. Kb5 9-> 0.09 7.12 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc6 4. Ka5 Kd5 5. Kb5 10 0.10 -- 1. Kc2 10 0.13 2.21 1. Kc2 Ke7 2. Kb3 Kd6 3. Kc4 Kc6 4. b5+ Kb6 5. Kb4 Kc7 6. Kc5 <HT> 10-> 0.14 2.21 1. Kc2 Ke7 2. Kb3 Kd6 3. Kc4 Kc6 4. b5+ Kb6 5. Kb4 Kc7 6. Kc5 <HT> 11 0.15 ++ 1. Kc2!! 11 0.17 7.41 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc6 4. Ka5 Kc7 5. Ka6 Kc6 6. b5+ Kd5 11-> 0.19 7.41 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc6 4. Ka5 Kc7 5. Ka6 Kc6 6. b5+ Kd5 12 0.20 -- 1. Kc2 12 0.22 2.57 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc6 4. Ka5 Kc7 5. b5 Kb7 6. b6 Kc6 7. Ka6 12-> 0.23 2.57 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc6 4. Ka5 Kc7 5. b5 Kb7 6. b6 Kc6 7. Ka6 13 0.25 ++ 1. Kc2!! 13 0.28 7.49 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc6 4. Ka5 Kc7 5. Ka6 Kd6 6. b5 Ke5 7. Kb6 13-> 0.29 7.49 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc6 4. Ka5 Kc7 5. Ka6 Kd6 6. b5 Ke5 7. Kb6 14 0.32 7.51 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc6 4. Ka5 Kc7 5. Ka6 Kd6 6. b5 Kc7 7. Ka7 <HT> 14-> 0.34 7.51 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc6 4. Ka5 Kc7 5. Ka6 Kd6 6. b5 Kc7 7. Ka7 <HT> 15 0.36 ++ 1. Kc2!! 15 0.40 8.37 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc6 4. Ka5 Kc7 5. Ka6 Kd6 6. b5 Kc7 7. Ka7 Kd6 8. b6 Kd5 15-> 0.42 8.37 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc6 4. Ka5 Kc7 5. Ka6 Kd6 6. b5 Kc7 7. Ka7 Kd6 8. b6 Kd5 16 0.47 8.41 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc7 4. Ka5 Kc6 5. Ka6 Kc7 6. b5 Kb8 7. Kb6 Ka8 8. Kc6 Ka7 16-> 0.49 8.41 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc7 4. Ka5 Kc6 5. Ka6 Kc7 6. b5 Kb8 7. Kb6 Ka8 8. Kc6 Ka7 17 0.54 8.47 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc7 4. Ka5 Kc6 5. Ka6 Kc7 6. b5 Kb8 7. Kb6 Kc8 8. Ka7 Kc7 9. b6+ Kd6 17-> 0.55 8.47 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc7 4. Ka5 Kc6 5. Ka6 Kc7 6. b5 Kb8 7. Kb6 Kc8 8. Ka7 Kc7 9. b6+ Kd6 18 0.61 -- 1. Kc2 18 0.64 8.49 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc7 4. Ka5 Kb7 5. Kb5 Ka7 6. Kc6 Kb8 7. b5 Ka7 8. Kc7 Ka8 9. Kc6 Kb8 10. Kd6 <HT> 18-> 0.65 8.49 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc7 4. Ka5 Kb7 5. Kb5 Ka7 6. Kc6 Kb8 7. b5 Ka7 8. Kc7 Ka8 9. Kc6 Kb8 10. Kd6 <HT> 19 0.71 8.51 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc7 4. Ka5 Kb7 5. Kb5 Ka7 6. Kc6 Kb8 7. b5 Ka7 8. Kc7 Ka8 9. Kb6 Kb8 10. Kc6 19-> 0.72 8.51 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc7 4. Ka5 Kb7 5. Kb5 Ka7 6. Kc6 Kb8 7. b5 Ka7 8. Kc7 Ka8 9. Kb6 Kb8 10. Kc6 20 0.75 -- 1. Kc2 20 0.81 7.95 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc7 4. Ka5 Kb7 5. Kb5 Ka7 6. Kc6 Kb8 7. b5 Ka7 8. Kc7 Ka8 9. Kd7 Kb7 10. Ke6 Kb6 20-> 0.83 7.95 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc7 4. Ka5 Kb7 5. Kb5 Ka7 6. Kc6 Kb8 7. b5 Ka7 8. Kc7 Ka8 9. Kd7 Kb7 10. Ke6 Kb6 21 0.86 ++ 1. Kc2!! 21-> 0.88 8.34 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc7 4. Ka5 Kb7 5. Kb5 Ka7 6. Kc6 Kb8 7. b5 Ka7 8. Kc7 Ka8 9. Kd7 Kb7 10. Ke6 Kb6 22 0.93 -- 1. Kc2 22 1.03 7.51 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc7 4. Ka5 Kb7 5. Kb5 Ka7 6. Kc6 Kb8 7. b5 Ka7 8. Kc7 Ka8 9. Kb6 Kb8 10. Ka6 Kc7 11. Ka7 Kd6 22-> 1.05 7.51 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc7 4. Ka5 Kb7 5. Kb5 Ka7 6. Kc6 Kb8 7. b5 Ka7 8. Kc7 Ka8 9. Kb6 Kb8 10. Ka6 Kc7 11. Ka7 Kd6 23 1.09 ++ 1. Kc2!! 23 1.17 9.52 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc7 4. Ka5 Kb7 5. Kb5 Ka7 6. Kc6 Kb8 7. Kb6 Ka8 8. b5 Kb8 9. Ka6 Kc7 10. b6+ Kc8 11. Ka7 Kd7 12. b7 Ke6 13. b8=Q Kf5 23-> 1.19 9.52 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc7 4. Ka5 Kb7 5. Kb5 Ka7 6. Kc6 Kb8 7. Kb6 Ka8 8. b5 Kb8 9. Ka6 Kc7 10. b6+ Kc8 11. Ka7 Kd7 12. b7 Ke6 13. b8=Q Kf5 24 1.29 9.87 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc7 4. Ka5 Kb7 5. Kb5 Ka7 6. Kc6 Kb8 7. Kb6 Ka8 8. b5 Kb8 9. Ka6 Kc7 10. b6+ Kc8 11. Ka7 Kd7 12. b7 Ke6 13. b8=Q Kf5 14. Kb6 24-> 1.31 9.87 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc7 4. Ka5 Kb7 5. Kb5 Ka7 6. Kc6 Kb8 7. Kb6 Ka8 8. b5 Kb8 9. Ka6 Kc7 10. b6+ Kc8 11. Ka7 Kd7 12. b7 Ke6 13. b8=Q Kf5 14. Kb6 25 1.45 9.89 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc7 4. Ka5 Kb7 5. Kb5 Ka7 6. Kc6 Kb8 7. Kb6 Ka8 8. b5 Kb8 9. Ka6 Kc7 10. b6+ Kc8 11. Ka7 Kd7 12. b7 Ke6 13. b8=Q Kf5 14. Qf8+ Ke4 15. Kb6 25-> 1.47 9.89 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc7 4. Ka5 Kb7 5. Kb5 Ka7 6. Kc6 Kb8 7. Kb6 Ka8 8. b5 Kb8 9. Ka6 Kc7 10. b6+ Kc8 11. Ka7 Kd7 12. b7 Ke6 13. b8=Q Kf5 14. Qf8+ Ke4 15. Kb6 26 1.62 10.18 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc7 4. Ka5 Kb7 5. Kb5 Ka7 6. Kc6 Kb8 7. Kb6 Ka8 8. b5 Kb8 9. Ka6 Kc7 10. Ka7 Kd8 11. b6 Kd7 12. b7 Kc6 13. b8=Q Kc5 <HT> 26-> 1.64 10.18 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc7 4. Ka5 Kb7 5. Kb5 Ka7 6. Kc6 Kb8 7. Kb6 Ka8 8. b5 Kb8 9. Ka6 Kc7 10. Ka7 Kd8 11. b6 Kd7 12. b7 Kc6 13. b8=Q Kc5 <HT> 27 1.91 10.28 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc7 4. Ka5 Kb7 5. Kb5 Ka7 6. Kc6 Kb8 7. Kb6 Ka8 8. b5 Kb8 9. Ka6 Kc7 10. Ka7 Kd8 11. b6 Kd7 12. b7 Kc6 13. b8=Q Kd5 14. Qd8+ Ke4 15. Kb6 Kf3 16. Kc6 27-> 1.94 10.28 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc7 4. Ka5 Kb7 5. Kb5 Ka7 6. Kc6 Kb8 7. Kb6 Ka8 8. b5 Kb8 9. Ka6 Kc7 10. Ka7 Kd8 11. b6 Kd7 12. b7 Kc6 13. b8=Q Kd5 14. Qd8+ Ke4 15. Kb6 Kf3 16. Kc6 28 2.38 10.40 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc7 4. Ka5 Kb7 5. Kb5 Ka7 6. Kc6 Kb8 7. Kb6 Ka8 8. b5 Kb8 9. Ka6 Kc7 10. Ka7 Kd8 11. b6 Kd7 12. b7 Kc6 13. b8=Q Kd5 14. Kb6 Kd4 15. Qd6+ Ke4 16. Qe6+ Kf4 17. Kc6 <HT> 28-> 2.41 10.40 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc7 4. Ka5 Kb7 5. Kb5 Ka7 6. Kc6 Kb8 7. Kb6 Ka8 8. b5 Kb8 9. Ka6 Kc7 10. Ka7 Kd8 11. b6 Kd7 12. b7 Kc6 13. b8=Q Kd5 14. Kb6 Kd4 15. Qd6+ Ke4 16. Qe6+ Kf4 17. Kc6 <HT> 29 3.81 10.62 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc7 4. Ka5 Kb7 5. Kb5 Ka7 6. Kc6 Kb8 7. Kb6 Ka8 8. b5 Kb8 9. Ka6 Kc7 10. Ka7 Kd8 11. b6 Kd7 12. b7 Kc6 13. b8=Q Kd5 14. Kb6 Ke4 15. Kc5 Kf3 16. Qe5 Kg4 29-> 3.84 10.62 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc7 4. Ka5 Kb7 5. Kb5 Ka7 6. Kc6 Kb8 7. Kb6 Ka8 8. b5 Kb8 9. Ka6 Kc7 10. Ka7 Kd8 11. b6 Kd7 12. b7 Kc6 13. b8=Q Kd5 14. Kb6 Ke4 15. Kc5 Kf3 16. Qe5 Kg4 30 6.95 10.82 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc7 4. Ka5 Kb7 5. Kb5 Ka7 6. Kc6 Kb8 7. Kb6 Ka8 8. b5 Kb8 9. Ka6 Kc7 10. Ka7 Kd8 11. b6 Kd7 12. b7 Kc6 13. b8=Q Kd5 14. Kb6 Kd4 15. Qd6+ Ke4 16. Kc5 Kf5 17. Kd5 Kg4 30-> 6.98 10.82 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc7 4. Ka5 Kb7 5. Kb5 Ka7 6. Kc6 Kb8 7. Kb6 Ka8 8. b5 Kb8 9. Ka6 Kc7 10. Ka7 Kd8 11. b6 Kd7 12. b7 Kc6 13. b8=Q Kd5 14. Kb6 Kd4 15. Qd6+ Ke4 16. Kc5 Kf5 17. Kd5 Kg4 31 12.43 10.90 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc7 4. Ka5 Kb7 5. Kb5 Ka7 6. Kc6 Kb8 7. Kb6 Ka8 8. b5 Kb8 9. Ka6 Kc7 10. Ka7 Kd8 11. b6 Kd7 12. b7 Ke6 13. b8=Q Kf5 14. Qg3 Ke4 15. Qg4+ Kd3 16. Kb6 Ke3 17. Kc5 Kd2 18. Qd4+ <HT> 31-> 12.45 10.90 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc7 4. Ka5 Kb7 5. Kb5 Ka7 6. Kc6 Kb8 7. Kb6 Ka8 8. b5 Kb8 9. Ka6 Kc7 10. Ka7 Kd8 11. b6 Kd7 12. b7 Ke6 13. b8=Q Kf5 14. Qg3 Ke4 15. Qg4+ Kd3 16. Kb6 Ke3 17. Kc5 Kd2 18. Qd4+ <HT> 32 22.50 11.02 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc7 4. Ka5 Kb7 5. Kb5 Ka7 6. Kc6 Kb8 7. Kb6 Ka8 8. b5 Kb8 9. Ka6 Kc7 10. b6+ Kc8 11. Ka7 Kd7 12. b7 Ke6 13. Kb6 Kd5 14. b8=Q Ke4 15. Kc5 Kf3 16. Qe5 Kg2 17. Qf5 Kh2 18. Kd5 32-> 22.53 11.02 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc7 4. Ka5 Kb7 5. Kb5 Ka7 6. Kc6 Kb8 7. Kb6 Ka8 8. b5 Kb8 9. Ka6 Kc7 10. b6+ Kc8 11. Ka7 Kd7 12. b7 Ke6 13. Kb6 Kd5 14. b8=Q Ke4 15. Kc5 Kf3 16. Qe5 Kg2 17. Qf5 Kh2 18. Kd5 33 39.42 11.09 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc7 4. Ka5 Kb7 5. Kb5 Ka7 6. Kc6 Kb8 7. Kb6 Ka8 8. b5 Kb8 9. Ka6 Kc7 10. b6+ Kc8 11. Ka7 Kd7 12. b7 Ke6 13. b8=Q Kf5 14. Qc8+ Kf4 15. Kb6 Ke3 16. Qg4 Kd3 17. Qf3+ Kd4 18. Qf5 Ke3 19. Kc5 <HT> 33-> 39.45 11.09 1. Kc2 Ke7 2. Kb3 Kd6 3. Ka4 Kc7 4. Ka5 Kb7 5. Kb5 Ka7 6. Kc6 Kb8 7. Kb6 Ka8 8. b5 Kb8 9. Ka6 Kc7 10. b6+ Kc8 11. Ka7 Kd7 12. b7 Ke6 13. b8=Q Kf5 14. Qc8+ Kf4 15. Kb6 Ke3 16. Qg4 Kd3 17. Qf3+ Kd4 18. Qf5 Ke3 19. Kc5 <HT> time=51.60 cpu=99% mat=1 n=12900294 fh=94% nps=250005 ext-> checks=2492596 recaps=0 pawns=37299 1rep=10650 predicted=0 nodes=12900294 evals=4385863 endgame tablebase-> probes done=0 successful=0 hashing-> trans/ref=128% pawn=99% used=w10% b18% White(1): Kc2 time used: 51.61 +---+---+---+---+---+---+---+---+ 8 | | | | | | *K| | | +---+---+---+---+---+---+---+---+ 7 | | | | | | | | | +---+---+---+---+---+---+---+---+ 6 | | | | | | | | | +---+---+---+---+---+---+---+---+ 5 | | | | | | | | | +---+---+---+---+---+---+---+---+ 4 | | P | | | | | | | +---+---+---+---+---+---+---+---+ 3 | | | | | | | | | +---+---+---+---+---+---+---+---+ 2 | | | K | | | | | | +---+---+---+---+---+---+---+---+ 1 | | | | | | | | | +---+---+---+---+---+---+---+---+ a b c d e f g h Black(1): Ke7 [pondering] time limit 49.95 (4:59) depth time score variation (32) 32 3.66 11.17 2. Kb3 Kd6 3. Ka4 Kc7 4. Ka5 Kb7 5. Kb5 Ka7 6. Kc6 Kb8 7. Kb6 Ka8 8. b5 Kb8 9. Ka6 Kc7 10. b6+ Kc8 11. Ka7 Kd7 12. b7 Ke6 13. b8=Q Kf5 14. Qb4 Kg6 15. Qf4 Kh5 16. Kb6 Kg6 17. Qb8 Kf5 18. Kb7 Ke4 19. Ka6 <HT> 32-> 4.40 11.17 2. Kb3 Kd6 3. Ka4 Kc7 4. Ka5 Kb7 5. Kb5 Ka7 6. Kc6 Kb8 7. Kb6 Ka8 8. b5 Kb8 9. Ka6 Kc7 10. b6+ Kc8 11. Ka7 Kd7 12. b7 Ke6 13. b8=Q Kf5 14. Qb4 Kg6 15. Qf4 Kh5 16. Kb6 Kg6 17. Qb8 Kf5 18. Kb7 Ke4 19. Ka6 <HT> Black(1): end LearnBook() executed execution complete.
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