[7660] in linux-scsi channel archive
Re: Linux SCSI seagate (TMC-950) driver help
daemon@ATHENA.MIT.EDU (Egbert Eich)
Thu Dec 9 22:22:13 1999
From: Egbert Eich <eich@hilbert.ikp.physik.tu-darmstadt.de>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Message-ID: <14416.21789.520830.500471@hilbert.ikp.physik.tu-darmstadt.de>
Date: Fri, 10 Dec 1999 02:19:25 +0100 (MET)
To: Drew Eckhardt <drew@Poohsticks.Org>
Cc: "Christian Jullien" <eligis@wanadoo.fr>,
"Egbert Eich" <eich@hilbert.ikp.physik.tu-darmstadt.de>,
linux-scsi@vger.rutgers.edu
In-Reply-To: drew@Poohsticks.Org wrote on Thursday, 9 December 1999 at 14:37:08 -0700
Drew Eckhardt writes:
> In message <NDBBKEKEPPEHBDFOABLGGEDBCBAA.eligis@wanadoo.fr>, eligis@wanadoo.fr
> writes:
> > > Have you checked meanwhile if NT really sees the irq 5 or has
> > > just registered it?
> >
> >I've no idea to do that on NT, so I made this test:
> >
> >Both a SCSI CD-ROM and 4mm DAT are connected to the TMC 9C50.
> >
> >While a full tape erase has been sent (quite a long job), I've complete
> >CD-ROM acces where a recusive dir
> >(DIR /S) gives me pretty good performances. I guess that if disconnection
> >was not allowed, CD-ROM performances should not be so good. Right ?
>
> Sure, although that doesn't mean it's using interrupts. You could
> easily attach to a timer,and check for reselection every time it fired.
>
>
Sure, I added something like this to the seagate driver to
get better performance out of a device that _didn't_ disconnect.
Drew didn't like some details and I didn't get around to fix it
so it never went in. I might dig up the old stuff and see if it
might be useful.
Egbert.
-
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@vger.rutgers.edu
