Author: Paul
Date: 09:31:54 06/26/00
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On June 26, 2000 at 11:57:48, KarinsDad wrote: >In both a Windows 98 and a Linux OS, my program hits the swap file heavily when >accessing the hash table. > >However, I have the hash table sized specified at about 40-45% of all memory in >both cases (I am testing on a 256 MB Windows 98 system with 120 MB hash and a >128 MB Linux system with a 50 MB hash). > >I cannot believe that my program and the OS take up so much memory that I have >to go to the swap files. This has to be an OS default which forces applications >to swap, even though they shouldn't have to. > >Does anyone know of a way to programatically tell the OS to knock it off? > >Thanks, > >KarinsDad :) You can add a line to system.ini to tell W98 to swap only if it's really necessary; in the [386Enh] section add this: ConservativeSwapfileUsage=1 But I tried that once and didn't like it. It didn't help me with my program anyway, I wanted to allocate a 192MB hash table with 256MB memory and didn't succeed either way. You just have to make sure that the sum of the memory that's allocated by your program (static & dynamic arrays etc) fits besides the OS, but you said&know that already. File Cache can eat up a lot of mem under W98 though, you can also limit that. You could use a utility like WinTop to see how much your program really uses up, and might be surprised ... Hope this helps ... Paul
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