Mail Archives: djgpp/1998/03/08/20:23:13
Eli Zaretskii wrote:
>
> On Wed, 4 Mar 1998, Vincenzo Morello wrote:
>
> > I get very low performance in a DJGPP V2 program which has to read large
> > disk data in low level mode.
> > I use _bios_disk() to read the disk and the program runs *five times*
> > slower than in Borland real mode.
>
> You don't tell much about your program, so it's hard to give any smart
> advice. Theoretically, you could make a DJGPP version 1000 times
> slower if you, for example, called the BIOS for every byte you needed
> to read.
...
Sorry, there was a problem in my reading loop (polling events under GRX).
Now I get good performance in DJGPP as well as in BC. I only have to reduce
the number of sectors-to-read to 18 (BC allows a maximum of 127).
Everything's Ok however.
Thanks,
Vincenzo
- Raw text -