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- CD Bench V1.00
- ==============
-
- This program checks the data transfer rate of your CD ROM drive at different
- CPU usage levels. When being run, it creates an file named CDBENCH.TXT in
- your current directory.
-
- To start the program, insert a CD ROM in your drive and enter the following
- command:
-
- CDBENCH <NameOfAFileOnYourCDRom>
-
- where the filename must include the CD ROM drive letter. Do not run the program
- if your current working directory is on a write protected volume, since the
- file CDBENCH.TXT is created in your current working directory.
-
- In order to reduce the possible influence of an on-drive cache, the file
- specified should be at least 5 MB big. To get comparable results, please
- remove all cache programs (e.g. SMARTDRV) from the systems memory.
-
- The Technical Side
- ------------------
- CDBENCH has been written using the WATCOM compiler (V10.0)
- and the DOS4/GW extender (V1.97 professional). It simulates an CPU usage level
- while reading from your CD ROM drive. This is done by using the timer IRQ
- which has been reprogrammed for this.
-
- What is all this good for?
- --------------------------
- By now I'm writing software for playback of fullsize videos on the PC. Since
- I don't want to use something like Windows, I've to develop everything on my
- own. I've noticed that different CD ROM drives behave very different on transfer
- speed when concurrently a different process (yes, yes) is being run under DOS.
- In order to optimize this routine, I would like to ask as many people as possible
- to run this program and mail the file CDBENCH.TXT to me. My e-mail adress
- is: hoffi@rz.tu-ilmenau.de
- If some people are interested, I could also publish the results in some
- news groups.
-
-
- Thanx in advance,
-
- Martin Hoffesommer
- hoffi@rz.tu-ilmenau.de
-
-