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 7470B9DCD7B for ; Mon, 20 Mar 2006 17:09:00 -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 78113-01 for ; Mon, 20 Mar 2006 17:09:00 -0400 (AST) X-Greylist: from auto-whitelisted by SQLgrey- Received: from asgard1.americatelsal.com (asgard2.americatelsal.com [200.13.161.7]) by postgresql.org (Postfix) with ESMTP id 2C1299DCC84 for ; Mon, 20 Mar 2006 17:08:56 -0400 (AST) Received: (qmail 57108 invoked from network); 20 Mar 2006 21:31:39 -0000 Received: from unknown (HELO ?192.168.10.124?) (200.13.161.68) by asgard1.americatelsal.com with SMTP; 20 Mar 2006 21:31:39 -0000 Message-ID: <441F1AC5.9050700@123.com.sv> Date: Mon, 20 Mar 2006 15:12:37 -0600 From: Miguel User-Agent: Mozilla Thunderbird 1.0.7 (Windows/20050923) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Postgresql Performance Subject: Re: Best OS & Configuration for Dual Xeon w/4GB & Adaptec References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: by amavisd-new at hub.org X-Spam-Status: No, score=0.008 required=5 tests=[AWL=0.008] X-Spam-Score: 0.008 X-Spam-Level: X-Archive-Number: 200603/345 X-Sequence-Number: 17782 Luke Lonergan wrote: >Miguel, > >On 3/20/06 12:52 PM, "Miguel" wrote: > > > >>i have a HP dl380 g3 with array 5i controlled (1+0), these are my results >> >> > >Another "known bad" RAID controller. The Smartarray 5i is horrible on Linux >- this is the first BSD result I've seen. > > > >>Seek times: >> Full stroke: 250 iter in 1.138232 sec = 4.553 msec >> Half stroke: 250 iter in 1.084474 sec = 4.338 msec >> >> > >These seem OK - are they "access times" or are they actually "seek times"? > > i dont know, how can i check? >Transfer rates: > outside: 102400 kbytes in 2.075984 sec = 49326 kbytes/sec > middle: 102400 kbytes in 2.100510 sec = 48750 kbytes/sec > inside: 102400 kbytes in 2.042313 sec = 50139 kbytes/sec > > >is this good enough? >It's pretty slow. How many disk drives do you have? > > > > I have 6 ultra a320 72G 10k discs --- Miguel