From owner-freebsd-performance@FreeBSD.ORG Wed Mar 5 18:09:11 2008 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 140A71065676 for ; Wed, 5 Mar 2008 18:09:11 +0000 (UTC) (envelope-from alan.bryan@yahoo.com) Received: from web50511.mail.re2.yahoo.com (web50511.mail.re2.yahoo.com [206.190.39.240]) by mx1.freebsd.org (Postfix) with SMTP id CE9318FC28 for ; Wed, 5 Mar 2008 18:09:10 +0000 (UTC) (envelope-from alan.bryan@yahoo.com) Received: (qmail 86787 invoked by uid 60001); 5 Mar 2008 18:09:10 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=X-YMail-OSG:Received:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding:Message-ID; b=3wUrFLGB2xRBah5x1HebeP/8yuUkjChXqfE/motQottYXeygy4LuDcX66ScRAx8JPgVv5Iql8JBosdizmMbQFHDQATVxuMqOjol6o0PMxdONS3eIx0TPs3HGg5h4OlLCJLFwvFGQHQKGzjsRuLK6VuSriHXnroaIpM8rYs3k4kU=; X-YMail-OSG: 0BffB9wVM1lWeOuM8QHllSFD6u1OjlpwYb7yoQEwqokFWT2_JyPLOHF7Q7RsK6QY17SjEy6iMMnIyCKSD.DbsWnY Received: from [76.91.101.96] by web50511.mail.re2.yahoo.com via HTTP; Wed, 05 Mar 2008 10:09:09 PST Date: Wed, 5 Mar 2008 10:09:09 -0800 (PST) From: alan bryan To: freebsd-performance@freebsd.org In-Reply-To: <497790.39526.qm@web50507.mail.re2.yahoo.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Message-ID: <96374.85181.qm@web50511.mail.re2.yahoo.com> Subject: Re: 7.0-Release and 3ware 9550SXU w/BBU - horrible write performance X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 05 Mar 2008 18:09:11 -0000 --- alan bryan wrote: > Hi, > > I've got a new server with a 3ware 9550SXU with the > Battery. I am using FreeBSD 7.0-Release (tried both > 4BSD and ULE) using AMD64 and the 3ware performance > for writes is just plain horrible. Something is > obviously wrong but I'm not sure what. > > I've got a 4 disk RAID 10 array. > > According to 3dm2 the cache is on. I even tried > setting The StorSave preference to "Performance" > with > no real benefit. There seems to be something really > wrong with disk performance. Here's the results > from > bonnie: OK - so, I ran the server for about 24 hrs while it did its battery test. After that it automatically turned on it's write cache. So, even though initially 3dm2 was reporting the cache was on I guess it must not have been. I ran some more tests: Version 1.93d ------Sequential Output------ --Sequential Input- --Random- Concurrency 1 -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks-- Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP server 16G 530 99 120160 23 28207 8 903 99 109688 16 518.7 18 Latency 18651us 541ms 447ms 11461us 271ms 66793us Version 1.93d ------Sequential Create------ --------Random Create-------- server -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete-- files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP 16 20737 34 +++++ +++ +++++ +++ 20429 37 +++++ +++ +++++ +++ Latency 146ms 22us 101ms 150ms 24us 31us 1.93c,1.93d,server,1,1204745494,16G,,530,99,120160,23,28207,8,903,99,109688,16,518.7,18,16,,,,,20737,34,+++++,+++,+++++,+++,20429,37,+++++,+++,+++++,+++,18651us,541ms,447ms,11461us,271ms,66793us,146ms,22us,101ms,150ms,24us,31us And my original test again: Writing with putc()...done Rewriting...done Writing intelligently...done Reading with getc()...done Reading intelligently...done Seeker 1...Seeker 2...Seeker 3...start 'em...done...done...done... -------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 100 154436 71.4 86016 10.8 104301 13.7 226587 100.0 1934776 101.6 173626.2 261.3 >dd if=/dev/zero of=/tmp/dd.file bs=1m count=1000 1000+0 records in 1000+0 records out 1048576000 bytes transferred in 7.814102 secs (134190213 bytes/sec) So, it's better but am I still getting what I should be seeing? ____________________________________________________________________________________ Looking for last minute shopping deals? Find them fast with Yahoo! Search. http://tools.search.yahoo.com/newsearch/category.php?category=shopping