X-Original-To: pgsql-performance-postgresql.org@localhost.postgresql.org Received: from localhost (unknown [200.46.204.144]) by svr1.postgresql.org (Postfix) with ESMTP id 60B4E52800 for ; Tue, 21 Jun 2005 13:05:02 -0300 (ADT) Received: from svr1.postgresql.org ([200.46.204.71]) by localhost (av.hub.org [200.46.204.144]) (amavisd-new, port 10024) with ESMTP id 42714-03 for ; Tue, 21 Jun 2005 16:04:57 +0000 (GMT) Received: from floppy.pyrenet.fr (floppy.pyrenet.fr [194.116.145.2]) by svr1.postgresql.org (Postfix) with ESMTP id 895895282B for ; Tue, 21 Jun 2005 13:04:55 -0300 (ADT) Received: by floppy.pyrenet.fr (Postfix, from userid 106) id 386CF30959; Tue, 21 Jun 2005 18:05:58 +0200 (MET DST) From: William Yu X-Newsgroups: pgsql.performance Subject: Trying to figure out pgbench Date: Tue, 21 Jun 2005 09:04:48 -0700 Organization: Hub.Org Networking Services Lines: 10 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Complaints-To: usenet@news.hub.org User-Agent: Mozilla Thunderbird 1.0 (X11/20041206) X-Accept-Language: en-us, en To: pgsql-performance@postgresql.org X-Virus-Scanned: by amavisd-new at hub.org X-Spam-Status: No, hits=0.014 tagged_above=0 required=5 tests=AWL X-Spam-Level: X-Archive-Number: 200506/397 X-Sequence-Number: 13034 My Dual Core Opteron server came in last week. I tried to do some benchmarks with pgbench to get some numbers on the difference between 1x1 -> 2x1 -> 2x2 but no matter what I did, I kept getting the same TPS on all systems. Any hints on what the pgbench parameters I should be using? In terms of production use, it definitely can handle more load. Previously, Apache/Perl had to run on a separate server to avoid a ~50% penalty. Now, the numbers are +15% performance even with Apache/Perl running on the same box as PostgreSQL. How much more load of course is what I'd like to quantify.