Received: from localhost (unknown [200.46.204.183]) by postgresql.org (Postfix) with ESMTP id 614DC9F976C for ; Tue, 11 Sep 2007 11:57:31 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.183]) (amavisd-maia, port 10024) with ESMTP id 83024-04 for ; Tue, 11 Sep 2007 11:57:29 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey-1.7.5 Received: from cassarossa.samfundet.no (cassarossa.samfundet.no [129.241.93.19]) by postgresql.org (Postfix) with ESMTP id 3640A9F9709 for ; Tue, 11 Sep 2007 11:57:28 -0300 (ADT) Received: from trofast.ipv6.sesse.net ([2001:700:300:1803:20e:cff:fe36:a766] helo=trofast.sesse.net) by cassarossa.samfundet.no with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.63) (envelope-from ) id 1IV7B7-0002KX-31; Tue, 11 Sep 2007 16:57:25 +0200 Received: from root by trofast.sesse.net with local (Exim 4.67) (envelope-from ) id 1IV7B6-0000hg-Ev; Tue, 11 Sep 2007 16:57:24 +0200 Date: Tue, 11 Sep 2007 16:57:24 +0200 From: "Steinar H. Gunderson" To: Maila Fatticcioni Cc: pgsql-performance@postgresql.org Subject: Re: DRBD and Postgres: how to improve the perfomance? Message-ID: <20070911145724.GB2620@uio.no> Mail-Followup-To: Maila Fatticcioni , pgsql-performance@postgresql.org References: <46E11BE4.6060500@mbigroup.it> <1189191616.4281.1.camel@ebony.site> <46E6AA8C.8030504@mbigroup.it> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <46E6AA8C.8030504@mbigroup.it> X-Operating-System: Linux 2.6.20.4 on a x86_64 X-Message-Flag: Outlook? --> http://www.mozilla.org/products/thunderbird/ User-Agent: Mutt/1.5.16 (2007-06-11) X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200709/181 X-Sequence-Number: 26726 On Tue, Sep 11, 2007 at 04:47:40PM +0200, Maila Fatticcioni wrote: > The servers are cross connected with a common 100 Mbit/sec Ethernet so I > think they have a bandwidth around 80 Mbit/sec (even if I haven't yet > done any test on it). A rate of 70Mb seems reasonable to me. Umm, seriously? Unless that was a typo, you should consider very seriously to go to gigabit; it's cheap these days, and should provide you with a very decent speed boost if the network bandwidth is the bottleneck. /* Steinar */ -- Homepage: http://www.sesse.net/