From owner-freebsd-hackers Sun Oct 14 2:35:10 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from freebsd.dk (fw-rl0.freebsd.dk [212.242.86.114]) by hub.freebsd.org (Postfix) with ESMTP id D848D37B40E; Sun, 14 Oct 2001 02:35:06 -0700 (PDT) Received: (from sos@localhost) by freebsd.dk (8.11.6/8.11.3) id f9E9Z2g25270; Sun, 14 Oct 2001 11:35:02 +0200 (CEST) (envelope-from sos) From: Søren Schmidt Message-Id: <200110140935.f9E9Z2g25270@freebsd.dk> Subject: Re: Severe I/O Problems In-Reply-To: To: mjacob@feral.com Date: Sun, 14 Oct 2001 11:35:02 +0200 (CEST) Cc: Jordan Hubbard , jrossiter@symantec.com, sos@FreeBSD.ORG, freebsd-hackers@FreeBSD.ORG Reply-To: sos@freebsd.dk X-Mailer: ELM [version 2.4ME+ PL94b (25)] MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=ISO-8859-1 Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG It seems Matthew Jacob wrote: > I don't doubt this. I just would suggest that there is such a spread of h/w > and configurations that sometimes turning on WC is fantastic, and sometimes > not so fantastic. Hmm, I know of no drives that shuld perform worse with WC on, but your case shows there could be such problems... > D'ya think you could come up with a little tester program that could predict > whether WC would make sense for a particular h/w configuration or not? That'd > be darned usefull. Hmm, that should be pretty easy, but I also have to integrate some of my other stuff so that WC can be changed *safely* with atacontrol... -Søren To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message