X-Original-To: pgsql-performance-postgresql.org@localhost.postgresql.org Received: from localhost (av.hub.org [200.46.204.144]) by postgresql.org (Postfix) with ESMTP id 759B39DCA1E for ; Mon, 19 Dec 2005 21:35:09 -0400 (AST) Received: from postgresql.org ([200.46.204.71]) by localhost (av.hub.org [200.46.204.144]) (amavisd-new, port 10024) with ESMTP id 51218-01-7 for ; Mon, 19 Dec 2005 21:35:07 -0400 (AST) X-Greylist: from auto-whitelisted by SQLgrey- Received: from mail.mi8.com (d01gw02.mi8.com [63.240.6.46]) by postgresql.org (Postfix) with ESMTP id A274C9DCA15 for ; Mon, 19 Dec 2005 21:34:32 -0400 (AST) Received: from 172.16.1.110 by mail.mi8.com with ESMTP (- Welcome to Mi8 Corporation www.Mi8.com (D2)); Mon, 19 Dec 2005 20:34:32 -0500 X-Server-Uuid: 7829E76E-BB9E-4995-8473-3C0929DF7DD1 Received: from MI8NYCMAIL06.Mi8.com ([172.16.1.175]) by D01SMTP01.Mi8.com with Microsoft SMTPSVC(6.0.3790.1830); Mon, 19 Dec 2005 20:34:32 -0500 Received: from 67.103.45.218 ([67.103.45.218]) by MI8NYCMAIL06.Mi8.com ( [172.16.1.219]) via Exchange Front-End Server mi8owa.mi8.com ( [172.16.1.106]) with Microsoft Exchange Server HTTP-DAV ; Tue, 20 Dec 2005 01:34:31 +0000 User-Agent: Microsoft-Entourage/11.2.1.051004 Date: Mon, 19 Dec 2005 17:34:31 -0800 Subject: Re: PostgreSQL and Ultrasparc T1 From: "Luke Lonergan" To: "Jignesh Shah" cc: "Juan Casero" , pgsql-performance@postgresql.org Message-ID: Thread-Topic: [PERFORM] PostgreSQL and Ultrasparc T1 Thread-Index: AcYE2cfZIe1w3tZWSUitym8yVww/KwAK75Iu In-Reply-To: MIME-Version: 1.0 X-OriginalArrivalTime: 20 Dec 2005 01:34:32.0372 (UTC) FILETIME=[86F38740:01C60505] X-WSS-ID: 6FB980222347239357-01-01 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Virus-Scanned: by amavisd-new at hub.org X-Spam-Status: No, score=1.266 required=5 tests=[AWL=0.013, RCVD_NUMERIC_HELO=1.253] X-Spam-Score: 1.266 X-Spam-Level: * X-Archive-Number: 200512/469 X-Sequence-Number: 16290 Jignesh, On 12/19/05 12:21 PM, "Jignesh Shah" wrote: > I got about 720 MB/sec to 730 MB/sec with plain dd tests on my current > storage configuration (8 LUNS on 4 fibers) which slowed me down (10K rpm 146 > GB disks FC) with 4 LUNS going through a longer pass to the disks (via a > controller master array to slave JBODs to provide ) . > > extended device statistics > r/s w/s Mr/s Mw/s wait actv wsvc_t asvc_t %w %b device > 0.8 14.0 0.0 0.0 0.0 0.3 0.0 17.8 0 4 c3t0d0 > 91.4 0.0 91.4 0.0 0.0 1.0 0.0 10.5 0 96 c0t40d0 > 96.0 0.0 96.0 0.0 0.0 1.0 0.0 10.0 0 96 c5t40d1 > 95.8 0.0 95.8 0.0 0.0 1.0 0.0 10.0 0 96 c0t40d1 Can you please explain these columns? R/s, is that millions of pages or extents or something? How do I translate this to 730 million bytes per second? - Luke