Author: Slater Wold
Date: 23:05:44 12/18/03
Go up one level in this thread
On December 19, 2003 at 01:37:29, Wayne Lowrance wrote: >On December 19, 2003 at 01:28:35, Slater Wold wrote: > >>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. ;) > >please explain this swapping. >Thank you http://aumha.org/win5/a/xpvm.php Do this test (on 2K & XP). Close everything possible. Run Task Manager, and look at your PF Usage (page file). Open Crafty, Fritz, whatever, and use 50% of your total physical memory. Now look at your PF usage.
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