Received: from localhost (unknown [200.46.204.183]) by mail.postgresql.org (Postfix) with ESMTP id 1E99364FC84 for ; Mon, 8 Dec 2008 01:40:26 -0400 (AST) Received: from mail.postgresql.org ([200.46.204.86]) by localhost (mx1.hub.org [200.46.204.183]) (amavisd-maia, port 10024) with ESMTP id 64084-04 for ; Mon, 8 Dec 2008 01:40:23 -0400 (AST) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from wa-out-1112.google.com (wa-out-1112.google.com [209.85.146.178]) by mail.postgresql.org (Postfix) with ESMTP id 3ADFE64FC67 for ; Mon, 8 Dec 2008 01:40:19 -0400 (AST) Received: by wa-out-1112.google.com with SMTP id j4so471600wah.19 for ; Sun, 07 Dec 2008 21:40:17 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to :subject:cc:in-reply-to:mime-version:content-type :content-transfer-encoding:content-disposition:references; bh=OjyLazcV8svFW+S5kSh7s8ACr6qprm43oRa37hbPY9c=; b=GNHCGBo7iuaWs94af2Ymbuhkz5iXCsPl/0WWhSqVtgBvk6kDuwQiGwpuRg10QXL4hA JIRDrAQ9B2d0EKlaky0ctNa5uIq+IskxDD3q/AoHzQKpHMnMXl0TjUu6TJ/M4DvRWsl3 kGGdXz5qWFCC1TGhJUihz7nOjOOxq5JdLBVpE= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version :content-type:content-transfer-encoding:content-disposition :references; b=NoHPZgKFe7Y5doWG5zAh23CcS2+WVboggxR8lRL/AxtH+sc19Uyvre+Wd7ozMhP/ip 3gbn66Lo1LJwsA9WUrlAk35ZsudU4/TW+dY3Yeoq70gtWteugW7pykbfb+LkLDj8/yze qPEFynXwB9DyU2OY6KdYcCrSpTSD0r72W7SAc= Received: by 10.115.18.1 with SMTP id v1mr2124171wai.175.1228714817332; Sun, 07 Dec 2008 21:40:17 -0800 (PST) Received: by 10.114.133.4 with HTTP; Sun, 7 Dec 2008 21:40:17 -0800 (PST) Message-ID: Date: Sun, 7 Dec 2008 22:40:17 -0700 From: "Scott Marlowe" To: "Josh Berkus" Subject: Re: Need help with 8.4 Performance Testing Cc: pgsql-performance@postgresql.org In-Reply-To: <200812071138.01215.josh@agliodbs.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <200812071138.01215.josh@agliodbs.com> X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=0 tagged_above=0 required=5 tests=none X-Spam-Level: X-Archive-Number: 200812/52 X-Sequence-Number: 32088 On Sun, Dec 7, 2008 at 12:38 PM, Josh Berkus wrote: I've got a pair of 8 core opteron 16 drive machines I would like to test it on. If nothing else I'll just take queries from the log to run against an 8.4 install. It'll have to be late at night though... > If you are going to use pgbench to test, *please* read Greg Smith's notes > first: > http://www.westnet.com/~gsmith/gregsmith/content/postgresql/pgbench-scaling.htm When I last used pgbench I wanted to test it with an extremely large dataset, but it maxes out at -s 4xxx or so, and that's only in the 40Gigabyte range. Is the limit raised for the pgbench included in contrib in 8.4? I'm guessing it's an arbitrary limit.