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Subject: Do Rebel9's databases and opening books need a larger cache memory?

Author: Eran

Date: 06:34:01 10/27/97


Hi Ed,

My computer has 16 KB of internal cache on the microprocessor and 256 KB
of static random-access memory (SRAM) level 2 (L2) cache.  Cache memory
that enhances the speed of many microprocessor operations by storing the
most recently accessed contents of system memory.

I am wondering whether or not it is necessary to put a line of
C:\windows\smartdrv.exe in autoexec.bat file on my Rebel9 bootdisk.
With smartdrv.exe my computer will take up about more than 2 million
bytes of cache memory, and I don't know if Rebel9 will use it for
databases and opening books.  Without smartdrv.exe I assume my computer
will use only 256 KB of cache memory automatically.  Including 2 MB of
smartdrv cache memory does not reduce the 28 MB hash tables, and I
assume it does not reduce the speed and power of Rebel9 either but I am
not sure, does it?  Should I include smartdrv in my Rebel9 bootdisk to
optimize performance of databases and opening books?  I don't know.
Please answer me.

The reason for writing this message for you is that yesterday when I
entered the database, the lower right small chess board had three or
four squares of d-file were abnormally blank and one knight (I don't
remember if it was Black or White) was "dropped" below the board.  I
thought maybe it was buggy or maybe Rebel9 did not have enough cache
memory.  What is your advise?  However, after I rebooted, loaded Rebel9,
and entered the database again, the lower right chess board was fine.  I
don't know why it happened so.  Do you know why?

For your info: my computer is 166 MHz Pentium with MMX, 40 MB RAM, and
2.1 GB harddisk.  I use Windows 95 but I use Rebel9 in pure MS-DOS.

Thank you very much for your help. :)

Eran
Rebel9 enduser



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