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Subject: Re: Hash table statistics

Author: martin fierz

Date: 06:15:47 04/08/04

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On April 08, 2004 at 09:08:19, Andrew Wagner wrote:

>Hi all,
>
>I'm using a simple hashing scheme: a single replace-always tranposition table.
>I've made sure all the hash keys are correct by comparing it to a key created
>from scratch. But I'm not sure it's working as efficiently as it could be. So,
>my question is: what statistics can I generate that will tell me how it's doing?
>And what values should I be getting for those statisics, on average?
>
>Also, a slightly different topic: someone told me that with hash tables, and
>without null-move, my move ordering (first-move fail-highs / total fail-highs)
>should be averaging >95%. Does that sound right to the rest of you? Thanks!
>Andrew

my MO with null-move is averaging ~90%. i thought that was quite reasonable.
don't know how 0-move affects it though. i don't think i ever saw anybody claim
>95% yet.

cheers
  martin



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