Author: Jouni Uski
Date: 21:49:37 09/30/02
To my disappointment I noticed, that Ruffian runs very slow in my good old AMD
K6-2
450Mhz. Here's analysis from start position (16MB hash and 1 minute):
rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq -
Depth Time Score Best line
7/13 1.11 -0.03 e4 Nc6 Nc3 Nf6 d4 d5 exd5
7/13 1.24 x.xx d4
7/13 1.41 0.00 d4 d5 Bf4 Bf5 Nc3 Nc6 Nf3
7--> 1.46 0.00 d4 d5 Bf4 Bf5 Nc3 Nc6 Nf3
8/17 3.05 -0.17 d4 Nf6 Nf3 Nc6 Ne5 Nxe5 dxe5 Ne4 Qd5
8/17 3.43 x.xx e4
8/17 3.88 -0.08 e4 Nc6 Nf3 Nf6 Nc3 e6 d4 Bb4
8--> 4.68 -0.08 e4 Nc6 Nf3 Nf6 Nc3 e6 d4 Bb4
9/19 7.87 0.02 e4 Nc6 Nf3 Nf6 Nc3 e6 e5 Nd5 Bb5
9--> 8.00 0.02 e4 Nc6 Nf3 Nf6 Nc3 e6 e5 Nd5 Bb5
10/21 21.52 0.01 e4 e6 Nc3 Bb4 a3 Bd6 d4 Nc6 Nb5 Be7
10--> 25.20 0.01 e4 e6 Nc3 Bb4 a3 Bd6 d4 Nc6 Nb5 Be7
11/22 59.99 0.05 e4 e6 Nf3 Nc6 d4 Nf6 Nc3 Bb4 Bd3 d5 Bg5
11--> 1:01 0.05 e4 e6 Nf3 Nc6 d4 Nf6 Nc3 Bb4 Bd3 d5 Bg5
exit... 1:01 1/20 e4
{exit}
Time: 1:04, cpu 99.98%, nodes 5754840, nps 89779
This is slow, when with Celeron 450 Mhz nps is in same test over 180000! It's
over 2x faster with same clock!! And there is nothing wrong in my PC as e.g.
Goliath reaches over 1Mnps many times.
Jouni
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