From:	Sean Smith <S DOT D DOT Smith AT ecs DOT soton DOT ac DOT uk>
Subject:	Disk I/O rates with DJGPP
To:	djgpp AT sun DOT soe DOT clarkson DOT edu
Date:	Wed, 2 Nov 1994 10:21:58 +0000 (GMT)
Cc:	jnc AT ecs DOT soton DOT ac DOT uk (John Carter)

A colleague of mine who is also using DJGPP has commented that the disk I/O
(low level) for DJGPP objects is substantially slower than native 
Windows or DOS I/O. The comment is that e.g. Zortech C/C++ can produce
binaries that give block reads and writes of large blocks at up to
400kbs-1 while despite the chosen blocksize DJGPP low level reads and
writes reach a ceiling at around 30kbs-1. Obviously there is some
h/w dependency here, but I guess the ratios are comparable whatever the
hardware.

I'm just off to look at the sources for read/write now, but does anyone
have any comments on this?

S D Smith,
Dept Electronics and Comp Science,
UNiversity of Southampton,
SOUTHAMPTON, England SO17 1BJ
tel. (+44) 170 359 2773

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