From owner-freebsd-current Sat Feb 20 18: 2:24 1999 Delivered-To: freebsd-current@freebsd.org Received: from panzer.plutotech.com (panzer.plutotech.com [206.168.67.125]) by hub.freebsd.org (Postfix) with ESMTP id AF24210E05 for ; Sat, 20 Feb 1999 18:02:18 -0800 (PST) (envelope-from ken@panzer.plutotech.com) Received: (from ken@localhost) by panzer.plutotech.com (8.9.2/8.8.5) id TAA16287; Sat, 20 Feb 1999 19:01:18 -0700 (MST) From: "Kenneth D. Merry" Message-Id: <199902210201.TAA16287@panzer.plutotech.com> Subject: Re: Slow seq. write on Seagate ST36530N In-Reply-To: from Matthew Jacob at "Feb 20, 1999 4:52:34 pm" To: mjacob@feral.com Date: Sat, 20 Feb 1999 19:01:18 -0700 (MST) Cc: grog@lemis.com, ken@plutotech.com, paulz@trantor.xs4all.nl, freebsd-current@FreeBSD.ORG X-Mailer: ELM [version 2.4ME+ PL43 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Matthew Jacob wrote... > > On Saturday, 20 February 1999 at 17:21:19 -0700, Kenneth D. Merry wrote: > > > Matthew Jacob wrote... > > >> > > >> If you're feeling kind, could you try and see if you could get a > > >> performance curve related to the number of outstanding tags allowed? > > > > > > I will send him some diffs for camcontrol in a separate piece of mail that > > > will enable him to change the number of tags on the fly. > > > > Now that sounds like a good idea. Do you plan to roll them into the > > distribution camcontrol? > > > > It sounds like a good idea, and it is. What I want to see is scsi_da use > this automatically. I have never liked the "punch it, Chewey!" approach > CAM has been taking..... What do you mean "scsi_da use this automatically"? All of the tagged queueing stuff is controlled in the transport layer. What are you proposing that the DA driver do? Ken -- Kenneth Merry ken@plutotech.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message