Author: Laurence Chen
Date: 12:56:38 11/28/02
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On November 28, 2002 at 15:03:04, James T. Walker wrote: >I have two computers which are almost identical. The motherboards/cpu are >identical. The video cards are different. The hard drives are the same with >one exception. On one the primary/master is 40G/7200rpm and the slave is >8G/5400. On the second computer the drives are the same but master & slave are >reversed. I have my tablebases installed on the 40G/7200 rpm drive in both >cases. >Here is the problem. When running test on programs to check speed like Fritz >mark they are almost identical. But when testing endgame positions where the >tablebases are being accessed very heavy the speed difference gets to 2:1. The >NPS on one is 2 times higher than the other. Any suggestions as to the cause? >Jim It is the pagefile which is causing the slowdown in the hard drive access. Since you didn't mention which Windows version you are running, for your information, Windows 9x has the worst pagefile system. In Windows NT/2K/XP, you will be allowed to specify which hard drive you want the pagefile to be saved, and also set the size of the page file. As a rule of thumb, the pagefile size should be 1.5 times the size of the RAM in your PC. That is, if the PC has 256 MB of RAM, then the pagefile size should be 384 MB. There's also a possibility that the pagefile in one of your PCs is corrupted. Solution, delete the pagefile and Windows will create a new one. Hope this helps, Laurence
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