From owner-freebsd-questions Thu Feb 24 10:59: 4 2000 Delivered-To: freebsd-questions@freebsd.org Received: from vinyl.sentex.ca (vinyl.sentex.ca [209.112.4.14]) by hub.freebsd.org (Postfix) with ESMTP id E645037BCCA for ; Thu, 24 Feb 2000 10:58:59 -0800 (PST) (envelope-from mike@sentex.ca) Received: from simoeon (simeon.sentex.ca [209.112.4.47]) by vinyl.sentex.ca (8.9.3/8.9.3) with SMTP id NAA39370 for ; Thu, 24 Feb 2000 13:58:57 -0500 (EST) (envelope-from mike@sentex.ca) Message-Id: <3.0.5.32.20000224135545.01e97630@marble.sentex.ca> X-Sender: mdtpop@marble.sentex.ca X-Mailer: QUALCOMM Windows Eudora Light Version 3.0.5 (32) Date: Thu, 24 Feb 2000 13:55:45 -0500 To: questions@freebsd.org From: Mike Tancsa Subject: Disk optimizations for news Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG I am putting together a new DNEWS server and wanted to get the best possible disk optimization for it. DNEWS stores its articles in a series of 1.4MB files on the spool. Given that, what would be the best way to newfs the drive. A simple bonnie test adjusting the block size on an IDE drive, shows the following minor differences (i.e. newfs -b 16384 -f 2048 vs the default -b 8192) -------Sequential Output-------- ---Sequential Input-- --Random-- -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks--- Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU 16K 400 18162 92.6 18561 31.0 5695 11.8 12760 97.8 22414 26.8 489.2 5.8 8K 400 17802 94.7 18510 31.7 5676 12.7 12436 97.7 22234 29.6 487.9 5.6 However, I am not sure if this test is representative of how DNEWS would access the filesystem. Suggestions ? ---Mike ------------------------------------------------------------------------ Mike Tancsa, tel +1 519 651 3400 Network Administrator, mike@sentex.net Sentex Communications www.sentex.net Cambridge, Ontario Canada To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message