From owner-freebsd-current Tue Sep 9 12:42:53 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id MAA00259 for current-outgoing; Tue, 9 Sep 1997 12:42:53 -0700 (PDT) Received: from usr03.primenet.com (tlambert@usr03.primenet.com [206.165.6.203]) by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id MAA00253 for ; Tue, 9 Sep 1997 12:42:51 -0700 (PDT) Received: (from tlambert@localhost) by usr03.primenet.com (8.8.5/8.8.5) id MAA27984; Tue, 9 Sep 1997 12:42:30 -0700 (MST) From: Terry Lambert Message-Id: <199709091942.MAA27984@usr03.primenet.com> Subject: Re: lousy disk perf. under cpu load (was IDE vs SCSI) To: tom@uniserve.com (Tom) Date: Tue, 9 Sep 1997 19:42:30 +0000 (GMT) Cc: tlambert@primenet.com, mal@algonet.se, current@FreeBSD.ORG In-Reply-To: from "Tom" at Sep 9, 97 12:15:44 pm X-Mailer: ELM [version 2.4 PL23] Content-Type: text Sender: owner-freebsd-current@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk > The NCR driver has supported tags for a LONG time, probably since > before 2.1 It used to be off without a compile time option for a long time; but I'm not sure about 2.2. > The ahc driver has supported tages for a LONG time, since about 2.1.5 He has a quantum drive on the AHC. > "ncrcontrol" for the NCR driver. Also, see ncrcontrol man page. This is a good point. It could be off on the drive, or the drive could not support it without a firmware update. 8-|. > The ahc driver lists tag support during boot. Also see ahc man page. His listed SCB's, but not tags, if my crecollection is right... Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers.