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Subject: Re: Sempron vs. Athlon 64: Proof that Crafty's working set is < 256k

Author: Sune Fischer

Date: 00:25:54 08/23/04

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On August 22, 2004 at 22:44:16, Robert Hyatt wrote:

>BTW when you tested that did you _run_ the program?  It defers some mallocs
>until it actually does a _search_...
>
>Aha.  OK.  I just ran a test with (a) no egtables, (b) no compiled in threads
>and I get a running size of about 5.75mb, with 3.75mb for the hash/hashp tables,
>that leaves 2.0mb for crafty and data.  How much is unused?  I don't know.  But
>then I don't run a stripped-down no-thread version either, so perhaps we are not
>comparing apples to apples...

Using the following rc file:
hash 4M
hashp 1M
cache 1M  (no EGT access)
drawscore=0
book off
book random 1
book width 5
learn 0
resign 6
log off

Crafty v.18.15 (smp) will use 5532 kB while running the benchmark according to
the task manager.

Crafty v.19.03 (single) will use 5332 kB while running the benchmark.

If I'm reading it right that means about 5120 kB is for the pawn and main hash,
so the remainder is a working set of a few hundred kB.

-S.






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