Author: Roberto Waldteufel
Date: 11:20:41 07/31/98
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On July 31, 1998 at 08:16:39, Komputer Korner wrote: >On July 30, 1998 at 10:14:08, David Eppstein wrote: > >>On July 29, 1998 at 23:54:33, Roberto Waldteufel wrote: >>>Well, here's the big question. I spent a lot of money on a fast PC with 64MB of >>>RAM for the main purpose of developing a chess program. I specially had a 64 MB >>>machine rather than 32, which was standard, because I wanted to use at least >>>40MB for hash tables, maybe more. Now I get all this terrible swapping. ... >>>So how can I load and execute a program entirely in RAM, with all its data >>>in RAM, with no disk access, no multitaskink, no fancy bells or whistles, just >>>maximum speed and efficiency? Is there an operating system that allows this? >> >>I realize this is not a helpful answer to you, but the MacOS will do this if you >>disable virtual memory. I've run programs that malloc as much as 120MB (my Macs >>have 144 and 160MB memories) without any thrashing at startup (or later). >> >>Other people in this thread have suggested NT, maybe Linux would also work. >>I suspect the correct answer to your question is "anything but Windows 95". > >Win 95 is not the culprit. Too little RAM is. For chess programs, users need at >least 128 Mb of RAM so that they can have 64 Mb hash tables with no problems. >-- >Komputer Korner Hi KK, I'm sorry, but I cannot agree. Any operating system that does not allow optimum use of system resources is culpable in my book - and I don't call the inability to use more than 50% of RAM without all that swaping optimal use, do you? I cannot be satisfied with being limited to 32MB when I have 64MB, and if I were to upgrade to 128MB I still would not be satisfied to then use just 64 - I would want to use 100MB or more in that case, or else I would not buy the extra RAM. I think a competent operating system would be a better investment. Best wishes, Roberto
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