Author: Daniel Karlsson
Date: 19:17:05 05/30/99
The following is a statistics dump from my hashtable after searching a test position (Bratko-Kopek 4 - and no, I didn't find the best move :-( ). CHashTable dump: 131072 entries in 3072KB (53.5% used) 610 (0.9%) exact 31577 (45.1%) upper bounds 37890 (54.1%) lower bounds 0 (0.0%) stale 1448685 probes 140246 hits 1308439 misses 100229 writes 23560 collisions Does any of this look strange? I'm a bit worried about the low hit ratio and high collision frequency but maybe that's normal? Any input would be appreciated. BTW I'm using a single 'depth preferred' hash table. I count a probe whenever I ask the hashtable if it has a score for the current position and depth, and a hit when it answers 'yes'.
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Last modified: Thu, 15 Apr 21 08:11:13 -0700
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