Hello Alain, > I just made some tests with UDMA2 and had some unexpected results:
> Why is FreeDOS so much slower (60% no UDMA, 14% with UDMA)??? this may depend on file placement and free space fragmentation as well, where MSDOS uses an alghorithm other then freedos what EXACTLY is RAWSPEED measuring ? use RAWREAD, and you'll get different results (usually MUCH better), so RAWSPEED is probably measuring something else > Is this consistent with other experiments? no. > Strange to see that cache delays things caching is useful only, if the same data are accessed twice (at least) else it gets only in the way. tom ------------------------------------------------------- This SF.Net email is sponsored by: NEC IT Guy Games. How far can you shotput a projector? How fast can you ride your desk chair down the office luge track? If you want to score the big prize, get to know the little guy. Play to win an NEC 61" plasma display: http://www.necitguy.com/?r=20 _______________________________________________ Freedos-devel mailing list Freedos-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-devel
