From owner-freebsd-scsi Mon Apr 15 2:40:27 2002 Delivered-To: freebsd-scsi@freebsd.org Received: from elvis.mu.org (elvis.mu.org [192.203.228.196]) by hub.freebsd.org (Postfix) with ESMTP id 9A42037B400 for ; Mon, 15 Apr 2002 02:40:23 -0700 (PDT) Received: by elvis.mu.org (Postfix, from userid 1000) id 7646AAE147; Mon, 15 Apr 2002 02:40:23 -0700 (PDT) Date: Mon, 15 Apr 2002 02:40:23 -0700 From: Paul Saab To: Lukas Ertl Cc: freebsd-scsi@freebsd.org Subject: Re: ciss driver and tagged queuing Message-ID: <20020415094023.GA61115@elvis.mu.org> References: <20020413224048.GA6046@elvis.mu.org> <20020415113126.V171-100000@pcle2.cc.univie.ac.at> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20020415113126.V171-100000@pcle2.cc.univie.ac.at> User-Agent: Mutt/1.3.27i 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 Lukas Ertl (l.ertl@univie.ac.at) wrote: > > On Sat, 13 Apr 2002, Paul Saab wrote: > > > Yea.. Mike and I discovered that the CAM sim was being frozen but never > > being unfrozen. Can you try this patch? > > thanks for the patch. Yes, the processes now don't lock up anymore, but > the performance issues are still there. Read performance has improved, but > write performance is still low. Can you clarify "low"? What is your setup? How fast are the disks? I can try to reproduce the same setup here, but you have to give us an idea of what you're doing. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message