Author: Robert Hyatt
Date: 10:42:45 02/10/03
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On February 10, 2003 at 12:19:16, Pablo Sierra wrote: >Some weeks ago I read a post from someone that said Fritz 8 wasnt working well >in a computer with 1 Gbyte+ of memory, can someone tell me how to fix that bug? > >Thanks in advance One point. When you go above 1gb of RAM, it is necessary to change the hardware paging that goes on. I won't try to explain the local/global page table stuff, but it is possible, depending on the O/S being used, that large RAM can become more problematic because the TLB can get thrashed for very large virtual address spaces. Without a copy of Fritz, it is impossible to see (here) what is going on, but there are certainly plenty of things that can cause this. Of course, if an operating system is smart (and I don't know if windows does this) it can switch to 4mb pages and eliminate this problem quite easily. But it makes things messy for the O/S, particularly when it tries to mix 4K and 4MB pages, something that has to be done since O/S pages are going to be 4kb most likely. Messy, to say the least....
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