DOS ain't dead

DOS copy command | FATPLUS.EXE (Developers)

posted by DOS386, 13.10.2010, 04:02

> I am testing with MS-DOS 7.0

This looks like Windaube (as already pointed above)

> When I use the DOS copy command to copy a file of 515 MB to a different
> name on the same disk it takes about 20 seconds.

> I wrote a small test program in assembler which opens and then reads the
> same file in 64k blocks using function 3Fh. It does not write the file to a
> different name, just reads it. This program takes 77 seconds just to read

Why don't you use my infamous FATPLUS.EXE tool to test ?

Known DOS issues:

- File reading is almost as fast as raw sector reading
- File writing is cca 3 times slower than file reading or raw sector writing, but depends from DOS version (EDR-DOS faster than FreeDOS) , FAT subversion, and cluster size (bigger is better)
- Very poor writing performance (more than 10 times slower) with small blocks (4 KiB ??? or less ???) in some cases with both FreeDOS and EDR-DOS

FATPLUS.EXE issues:

- Abandoned, there will be no updates
- Codebase is obsolete and crappy, no source will be ever released
- No progress indicator
- No performance calculation

Features:

- (CL) Public Domain
- Supports files up to 256 GiB
- Reports time consumed


FATPLUS C XXX 99'999'999'999


---
This is a LOGITECH mouse driver, but some software expect here
the following string:*** This is Copyright 1983 Microsoft ***

Complete thread:

• DOS copy command - georgpotthast, 26.09.2010, 21:37 (Developers)
  • DOS copy command - ecm, 26.09.2010, 23:46
  • DOS copy command - Japheth, 27.09.2010, 02:06
  • DOS copy command - georgpotthast, 27.09.2010, 21:28
    • DOS copy command - ecm, 27.09.2010, 21:40
      • DOS copy command - georgpotthast, 27.09.2010, 22:46
        • DOS copy command - bretjohn, 28.09.2010, 00:15
          • DOS copy command - ecm, 28.09.2010, 01:16
            • DOS copy command - Rugxulo, 28.09.2010, 05:37
            • DOS copy command - Rugxulo, 28.09.2010, 22:40
              • DOS copy command - Rugxulo, 30.09.2010, 06:51
                • DOS copy command - georgpotthast, 30.09.2010, 19:59
                  • DOS copy command - tom, 01.10.2010, 15:12
                    • DOS copy command - georgpotthast, 02.10.2010, 22:56
                      • DOS copy command - RayeR, 08.10.2010, 10:10
            • DOS copy command - nidud, 03.10.2010, 17:17
          • DOS copy command - georgpotthast, 28.09.2010, 21:04
            • DOS copy command - ecm, 29.09.2010, 14:05
  • DOS copy command | FATPLUS.EXE - DOS386, 13.10.2010, 04:02