[7143] in linux-scsi channel archive
Re: Fixing the SCSI layer
daemon@ATHENA.MIT.EDU (Alan Cox)
Sat Sep 4 20:47:30 1999
To: mark@iphase.com (Mark Veteikis)
Date: Sun, 5 Sep 1999 01:44:33 +0100 (BST)
Cc: alan@lxorguk.ukuu.org.uk, mjacob@feral.com,
linux-kernel@vger.rutgers.edu, linux-scsi@vger.rutgers.edu
In-Reply-To: <199909050024.TAA08426@sw10.iphase.com> from "Mark Veteikis" at Sep 4, 99 07:24:28 pm
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
> Besides, cleaning up the code, has anyone identified specific performance
> problems that need to be fixed in the SCSI mid-layer? For some reason the
> Interphase FC adapter is topping out at ~72MB/s on sequential reads,
> this seems rather low, knowing that we can get 90+ with identical hardware
> under NT.
The code is too heavy weight. I See performance limits with the Symbios
FC card too. In paticular the commands/second is very very limited.
Alan
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