From owner-freebsd-scsi Sun Mar 31 3:21:10 2002 Delivered-To: freebsd-scsi@freebsd.org Received: from mass.dis.org (dhcp45-24.dis.org [216.240.45.24]) by hub.freebsd.org (Postfix) with ESMTP id 2DA5337B416; Sun, 31 Mar 2002 03:21:07 -0800 (PST) Received: from mass.dis.org (localhost [127.0.0.1]) by mass.dis.org (8.11.6/8.11.6) with ESMTP id g2VBK2c05032; Sun, 31 Mar 2002 03:20:03 -0800 (PST) (envelope-from msmith@mass.dis.org) Message-Id: <200203311120.g2VBK2c05032@mass.dis.org> X-Mailer: exmh version 2.5 07/13/2001 with nmh-1.0.4 To: Lukas Ertl Cc: Michael Smith , "Kenneth D. Merry" , freebsd-scsi@freebsd.org Subject: Re: ciss driver and tagged queuing In-reply-to: Your message of "Sun, 31 Mar 2002 13:08:45 +0200." Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Sun, 31 Mar 2002 03:20:02 -0800 From: Michael Smith Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org > On Fri, 29 Mar 2002, Michael Smith wrote: > > > > The problem is that the inquiry data doesn't indicate that the arrays > > > support tagged queueing, so you only get one tag at a time. > > > > The arrays don't support tagged queueing, but they do support multiple > > outstanding commands. > > So is there anything I can do to improve performance? Or do I just have > bad luck for now? Somehow I started to like the hardware, it seemed pretty > robust at first glance :-) I'll try to come up with a patch, or you can look at the mly driver's CVS log when I made the change Ken refers to. Now that I recall it, it was a no-brainer so making a similar change to ciss(4) should be simple. -- To announce that there must be no criticism of the president, or that we are to stand by the president, right or wrong, is not only unpatriotic and servile, but is morally treasonable to the American public. - Theodore Roosevelt To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message