To: John Nemeth <jnemeth AT cue DOT bc DOT ca>
Cc: Charles Sandmann <sandmann AT new-orleans DOT neosoft DOT com>,
        Martin AT snsystems DOT co DOT uk, djgpp AT sun DOT soe DOT clarkson DOT edu
Subject: Re: Disk I/O rates with DJGPP 
Date: Sun, 13 Nov 94 09:46:07 +0200
From: "Eli Zaretskii" <eliz AT is DOT elta DOT co DOT il>

> } indeed should make I/O faster.  I do maintain, though, that 10 more
> } seconds is not such a long time to wait, even if you just bought this
> } great ACME SCSI-II drive...
>
>      I disagree.  Of course, I'm another person that tried to squeeze
> maximum performance out of DJGPP.  For some applications, I/O
> performance is extremely important.  One of the main reasons I was

Could you provide an example of that kind of application?  I mean,
not one which merely cares about I/O speed (who doesn't?), but one
which will suffer greatly from having to read, say, 32 MBytes in 27
seconds rather than in 17 (that was the last example on this thread).
Note that for non-multimegabyte files, the DJGPP penalty in *seconds*
(not in %) is only a second or so, relative to what you get under
real-mode DOS.