From owner-freebsd-arch Fri Nov 3 6:42:45 2000 Delivered-To: freebsd-arch@freebsd.org Received: from point.osg.gov.bc.ca (point.osg.gov.bc.ca [142.32.102.44]) by hub.freebsd.org (Postfix) with ESMTP id 6203437B4CF for ; Fri, 3 Nov 2000 06:42:43 -0800 (PST) Received: (from daemon@localhost) by point.osg.gov.bc.ca (8.8.7/8.8.8) id GAA06855; Fri, 3 Nov 2000 06:41:40 -0800 Received: from passer.osg.gov.bc.ca(142.32.110.29) via SMTP by point.osg.gov.bc.ca, id smtpda06853; Fri Nov 3 06:41:33 2000 Received: (from uucp@localhost) by passer.osg.gov.bc.ca (8.11.0/8.9.1) id eA3EfWP12547; Fri, 3 Nov 2000 06:41:32 -0800 (PST) Received: from cwsys9.cwsent.com(10.2.2.1), claiming to be "cwsys.cwsent.com" via SMTP by passer9.cwsent.com, id smtpdJ12543; Fri Nov 3 06:40:39 2000 Received: (from uucp@localhost) by cwsys.cwsent.com (8.11.1/8.9.1) id eA3Eebp39614; Fri, 3 Nov 2000 06:40:37 -0800 (PST) Message-Id: <200011031440.eA3Eebp39614@cwsys.cwsent.com> Received: from localhost.cwsent.com(127.0.0.1), claiming to be "cwsys" via SMTP by localhost.cwsent.com, id smtpdL39601; Fri Nov 3 06:39:50 2000 X-Mailer: exmh version 2.2 06/23/2000 with nmh-1.0.4 Reply-To: Cy Schubert - ITSD Open Systems Group From: Cy Schubert - ITSD Open Systems Group X-OS: FreeBSD 4.1.1-RELEASE X-Sender: cy To: Matt Dillon Cc: Dag-Erling Smorgrav , Marius Bendiksen , Randell Jesup , arch@FreeBSD.ORG Subject: Re: Like to commit my diskprep In-reply-to: Your message of "Fri, 03 Nov 2000 02:14:51 PST." <200011031014.eA3AEpV45562@earth.backplane.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Fri, 03 Nov 2000 06:39:47 -0800 Sender: owner-freebsd-arch@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG In message <200011031014.eA3AEpV45562@earth.backplane.com>, Matt Dillon writes: > > :> This is a matter of preference (hence the reference to paint) and also the > :> use intended for the system in question. However, the code is not going to > :> be significantly more complex due to this, and I think it's a much better, > :> ie cleaner, way of doing it. > : > :One question that probably interests many of us is, can tuning those > :numbers reduce fsck time? Is fsck time strictly proportional to disk > :size, or does the number of inodes and/or cylinder groups affect it? > : > :DES > :-- > :Dag-Erling Smorgrav - des@ofug.org > > Yes. Increasing the number of bytes per inode will reduce the number > of inodes and thus reduce fsck time. Increasing the number of cylinders > in a group will localize inodes into bigger chunks, reducing seeking > and also thus reduce fsck time. Wouldn't that tend to generally reduce day-to-day performance as well? I suspect that Kirk and co. at CSRG had a good reason for choosing the defaults they did. Regards, Phone: (250)387-8437 Cy Schubert Fax: (250)387-5766 Team Leader, Sun/DEC Team Internet: Cy.Schubert@osg.gov.bc.ca Open Systems Group, ITSD, ISTA Province of BC To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message