From owner-freebsd-bugs Sat May 19 7:51:43 2001 Delivered-To: freebsd-bugs@freebsd.org Received: from sentry.granch.com (sentry.granch.com [212.109.197.55]) by hub.freebsd.org (Postfix) with ESMTP id 949B737B42C for ; Sat, 19 May 2001 07:51:39 -0700 (PDT) (envelope-from shelton@sentry.granch.ru) Received: from sentry.granch.com (localhost [127.0.0.1]) by sentry.granch.com (8.11.3/8.11.3) with SMTP id f4JEp9D24479; Sat, 19 May 2001 21:51:10 +0700 (NOVST) (envelope-from shelton@sentry.granch.ru) Content-Type: text/plain; charset="koi8-r" From: "Rashid N. Achilov" Reply-To: achilov@granch.ru Organization: Granch Ltd. To: =?koi8-r?q?S=F8ren=20Schmidt?= , valgog@biofrontera.de Subject: Re: ATA driver on 4.3 is too slow Date: Sat, 19 May 2001 21:51:09 +0700 X-Mailer: KMail [version 1.2] Cc: freebsd-bugs@FreeBSD.ORG References: <200105171133.f4HBX4457528@freebsd.dk> In-Reply-To: <200105171133.f4HBX4457528@freebsd.dk> MIME-Version: 1.0 Message-Id: <01051921510901.04398@sentry.granch.com> Content-Transfer-Encoding: 8bit Sender: owner-freebsd-bugs@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org On Thursday 17 May 2001 18:33, Søren Schmidt wrote: > It seems valgog@biofrontera.de wrote: > > Most of the impact is due to FreeBSD now shipping with Write Caching > off as default (see man ata for details), that will hurt even if > you run with softupdates. If you dont care about possible dataloss > at power failures you can enable WC and get your performance back... sysctl -w hw.ata.wc=1 sysctl: oid 'hw.ata.wc' is read only -- With Best Regards. Rashid N. Achilov (RNA1-RIPE), Web: http://granch.ru/~shelton Granch Ltd. system administrator, e-mail: achilov@granch.ru PGP: 83 CD E2 A7 37 4A D5 81 D6 D6 52 BF C9 2F 85 AF 97 BE CB 0A To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message