Author: Thom Perry
Date: 03:35:31 02/07/00
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On February 06, 2000 at 08:13:49, leonid wrote: >On February 06, 2000 at 06:33:32, Thom Perry wrote: > >>On February 05, 2000 at 08:50:21, leonid wrote: >> >>>Hello! >>> >>>What is real difference in speed between chess game written for DOS and >>>identical game but done for Windows 32 bits system? Just your idea or some >>>direct numbers from the game that you tried or wrote. >>> >>>Thanks! >>>Leonid. >> >>This doesn't directly answer your question, but I do have some >>information about MS DOS 6.22 versus the Windows 95 32 bit DOS, which I >>believe was called DOS 7.0. I was training neural networks using a DOS >>program, so I logged a training session using DOS 6.22, then DOS 7.0 on a >>computer that had both systems installed. The training session was 13% >>faster on DOS 6.22. I assume, therefore, that a DOS chess program will >>also run faster in DOS 6.22 than DOS 7.0, or whatever the current Windows >>98 DOS is called. > >Pretty strange and curious! How big was your program? But actually I want to >know if it used that much extended memory or expended memory. > >Windows first versions for sure used DOS 7.0, later I don't know. We had even >for some time DOS 7 from other company but this big company never came with >upgrade. This last DOS was done probably more to impress the public that for >real desire to be new system company. > >Leonid. The program I was using is Brainmaker Professional Ver. 3.0. The executable is 265K. It converts the training files to binary files. My fact file was 451K, and the test file was 265K. I think that Brainmaker runs in extended memory, as there is no disk activity even though I ask it to generate data files after each cycle. But I also use disk caching, so I just occasionally get disk writes during periods of inactivity. Anyhow, I was told that 7.0 was faster than 6.22, but this was not my experience.
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