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Subject: Re: Chessbase engine tournaments with large hash tables

Author: Mike Hood

Date: 12:07:42 10/23/05

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On October 23, 2005 at 13:34:05, Ray Banks wrote:

>On October 23, 2005 at 11:12:26, Mike Hood wrote:
>>To repeat my initial question: is there any way to prevent Windows XP from
>>swapping memory out unnecessarily?
>
>Maybe try this:
>
>http://www.outertech.com/index.php?_charisma_page=product&id=7
>
>Not sure if it will help, but worth a try

I've tried CacheMan already. Thanks anyway.

Since my first post I've read some technical forums concerning Windows XP memory
management. It's a frequently reported "problem" (I prefer the word "bug") that
Windows XP swaps out memory when an application is "inactive". Inactivity is
defined as when an application is minimized, when the window is not on top (ie
when it is completely or partially covered), or when there has been no user
input for a long time.

When trying to observe this phenomenon I had the Windows Task Manager on top of
the Fritz 9 window, which probably provoked the problem, making it happen more
often. This is bad, nevertheless, because it's quite feasible that I might want
to answer emails while running an engine tournament. But the principle that
Windows might decide to swap out Fritz 9's hash tables just because I haven't
typed anything for an hour or longer is awful. What sort of an operating system
is this anyway? Let's hope the next Windows XP upgrade fixes this bug.

Are you sure there isn't a system tweak of some sort to prevent this happening?



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