Author: Ed Schröder
Date: 11:47:24 10/27/97
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>Posted by Eran on October 27, 1997 at 09:34:01: >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. Activate SMARTDRV immediately. On your Pc Rebel 9.0 will have 28 Hash anyway so you will have only advantages and no single negative side effect. Disk cache programs are a must by extensive hard disk usage. Speedup of 500-600% guaranteed... >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? I have no explanation either. But Rebel is a Rebel, and without any cause... :)) >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. :) You are most welcome of course. But tell me why do you run Rebel9 in pure DOS mode? Why not on Win 95? Launching Rebel9 on W95 you still have 28 Mb hash and the speed loss is only 3-5% because W95 is in charge. So much more convenient IMO. - Ed Schroder - >Eran >Rebel9 enduser
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