Skip site navigation (1)Skip section navigation (2)
Date:      Fri, 12 Sep 1997 23:19:17 +0200
From:      j@uriah.heep.sax.de (J Wunsch)
To:        hackers@FreeBSD.ORG
Subject:   Re: Do *you* have problems with floppies?
Message-ID:  <19970912231917.EB46720@uriah.heep.sax.de>
In-Reply-To: <Pine.SV4.3.95.970912130218.29476C-100000@kestrel.ukc.ac.uk>; from K.J.Koster on Sep 12, 1997 13:06:36 %2B0100
References:  <199709120935.LAA03134@labinfo.iet.unipi.it> <Pine.SV4.3.95.970912130218.29476C-100000@kestrel.ukc.ac.uk>

next in thread | previous in thread | raw e-mail | index | archive | help
As K.J.Koster wrote:

> 30-40kb/s? I wish. 8kb/s is what dd reports for my floppy drive.

No surprise.  One of the problems probably resulting out of the abuse
of buffered devices.

40 KB/s is exaggerating, but 30 KB/s is the raw sequential throughput
the FreeBSD driver does.  That's about 67 % of the theoretical maximum
(45 KB/s).

> Oh, and regarding the fdformat in another post in the same thread: when
> FreeBSD finds an error on one of my floppies, it's dead. MS-DOS' scandisk
> reports the same errors and cannot fix them.

So what?  You can try reformatting them over and over again, if you
like.  I prefer the bit-bucket in these cases.

Boys, you should at least learn the very basics of floppies, and the
floppy controller used in PeeCees (NE 765 aka. i8272, really a very
sick device from the early 80's), before you're starting to speculate
what could be done in a driver.

-- 
cheers, J"org

joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?19970912231917.EB46720>