From owner-freebsd-current Mon Mar 10 14:11:42 2003 Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 9FC9F37B401 for ; Mon, 10 Mar 2003 14:11:41 -0800 (PST) Received: from smart.eusc.inter.net (smart.eusc.inter.net [213.73.101.5]) by mx1.FreeBSD.org (Postfix) with ESMTP id DDF3243FA3 for ; Mon, 10 Mar 2003 14:11:40 -0800 (PST) (envelope-from msch@snafu.de) Received: from mail.snafu.de ([10.12.0.4] helo=service.snafu.de) by smart.eusc.inter.net with smtp (Exim 3.36 #4) id 18sVUh-00060N-00; Mon, 10 Mar 2003 23:11:39 +0100 To: Dag-Erling Smorgrav , msch@snafu.de, Nuno Teixeira , freebsd-current@freebsd.org From: msch@snafu.de X-Sender: msch@snafu.de Subject: Re: softupdates && write cache && ata tags topic Date: Mon, 10 Mar 2003 22:11:39 GMT X-Mailer: Endymion MailMan Standard Edition v3.0.35 Message-Id: Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Hi, > > Write cacheing is automatically enabled if tagged queueing is enabled > and supported by the disk, so I doubt you're seeing any improvement at > all. I must admit: My statements are based on experience with SCSI Tagged Queuing and SCSI Write Cache. I hope I'm correct if I assume that the ATA features have not only the same name but the same functionality. I wasn't aware, that they are coupled by the driver code... Thanks for your commment/correction - Matthias To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message