On Wed, Sep 5, 2012 at 2:14 AM, Felix Miata <mrma...@earthlink.net> wrote:
> Is FreeDOS HD access as slow as PC or MS DOS? IIUC, the latter use slow 16
> bit BIOS code, which is what makes it painful for me to use compared to
> running DOS apps in an OS/2 VM.

Yes, probably just as slow as it also uses the BIOS.

> Is FreeDOS disk I/O in the same class as 32 &
> 64 bit operating systems speed-wise?

No, FreeDOS is pure 16-bit, but with Ultra DMA enabled and a software
cache (e.g. UIDE) can help a lot. That's about the best you can do
outside of just running under DOSEMU or similar (NTVDM).

BTW, things like DOSLFN slow down file accesses a lot, so avoid them
if possible.

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