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Subject: Re: Bigger hash really better?

Author: Slater Wold

Date: 22:28:35 12/18/03

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On December 19, 2003 at 01:21:45, Jouni Uski wrote:

>After installing more RAM to my Pentium 2,4 GHz I tested Fritz8 in some test
>suites with 128MB and 384MB hash (time limit was 10 minutes and positions quite
>hard = average solution times around 3-5 minutes): to my surprise
>average solution time was shorter with 128MB! Why? Absolutely no hard disk
>swapping with 512MB total RAM!
>
>Jouni

Windows is kinda crappy here...

I watched Bob go from 384MB to 4096MB hash the other nite, and his NPS did _NOT_
slow down.  Not even a FRACTION of a percent.  Of course, he was running SuSe
(Linux).

In Windows, that isn't going to happen.  Every single time you edge your hash
up, you'll probably see a slowing down of NPS.  Why?  Swapping.  Windows does
*too* much of it.

Turn your swap file off, and see what happens.  ;)



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