Author: Don Prohaska
Date: 12:40:16 10/27/97
Go up one level in this thread
On October 27, 1997 at 14:47:24, Ed Schröder wrote: Well, I've ordered but haven't got 9 yet. But with Reblel 8 I get 28mb in pure Dos but only 256kb when booted from Windows95. So I hope Rebel 9 does as Ed says. >>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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