From owner-freebsd-scsi Wed Jun 10 09:45:54 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id JAA14570 for freebsd-scsi-outgoing; Wed, 10 Jun 1998 09:45:54 -0700 (PDT) (envelope-from owner-freebsd-scsi@FreeBSD.ORG) Received: from ns2.cetlink.net (root@ns2.cetlink.net [209.54.54.20]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id JAA14526 for ; Wed, 10 Jun 1998 09:45:35 -0700 (PDT) (envelope-from jak@cetlink.net) Received: from EXIT10 (i485-gw.cetlink.net [209.198.15.97]) by ns2.cetlink.net (8.8.8/8.8.5) with SMTP id MAA10253; Wed, 10 Jun 1998 12:45:25 -0400 (EDT) From: jak@cetlink.net (John Kelly) To: "Justin T. Gibbs" Cc: scsi@FreeBSD.ORG Subject: Re: buslogic problems Date: Wed, 10 Jun 1998 16:47:38 GMT Message-ID: <357eb821.46727503@mail.cetlink.net> References: <199806080314.VAA13557@pluto.plutotech.com> In-Reply-To: <199806080314.VAA13557@pluto.plutotech.com> X-Mailer: Forte Agent 1.5/32.451 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by hub.freebsd.org id JAA14539 Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Sun, 07 Jun 1998 21:10:01 -0600, "Justin T. Gibbs" wrote: >Most likely the degradation is from using ordered tags. Try this >change around line 936 of sys/cam/scsi/scsi_da.c: > >#if 0 > if ((bp->b_flags & B_ORDERED) != 0 > || (softc->flags & DA_FLAG_NEED_OTAG) != 0) { > softc->flags &= ~DA_FLAG_NEED_OTAG; > softc->ordered_tag_count++; > tag_code = MSG_ORDERED_Q_TAG; > } else { > tag_code = MSG_SIMPLE_Q_TAG; > } >#else > tag_code = MSG_SIMPLE_Q_TAG; >#endif I get the same time as before, no difference between ordered tag and simple tag. The slowdown must be elsewhere. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message