Received: from localhost (maia-2.hub.org [200.46.204.187]) by postgresql.org (Postfix) with ESMTP id 1780B9FC393 for ; Fri, 23 Feb 2007 15:06:11 -0400 (AST) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.187]) (amavisd-new, port 10024) with ESMTP id 85708-05 for ; Fri, 23 Feb 2007 15:05:57 -0400 (AST) X-Greylist: from auto-whitelisted by SQLgrey-1.7.4 Received: from www.3times25.net (duck.3times25.net [66.23.211.34]) by postgresql.org (Postfix) with ESMTP id 7EF679FC38F for ; Fri, 23 Feb 2007 15:05:59 -0400 (AST) Received: from [127.0.0.1] (localhost [127.0.0.1]) by www.3times25.net (Postfix) with ESMTP id F0A455403B; Fri, 23 Feb 2007 14:05:57 -0500 (EST) Message-ID: <45DF3B15.1070609@3times25.net> Date: Fri, 23 Feb 2007 14:05:57 -0500 From: Geoffrey User-Agent: Thunderbird 1.5.0.8 (X11/20061025) MIME-Version: 1.0 To: pgsql-performance@postgresql.org Subject: which Xeon processors don't have the context switching problem Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=0.068 tagged_above=0 required=5 tests=AWL, BAYES_50 X-Spam-Level: X-Archive-Number: 200702/253 X-Sequence-Number: 23307 I recall a reference on the list indicating that newer Xeon processors don't suffer from the context switching problem reported last year. In searching the archives, I can't find any specific info indentifying which Xeon processors don't have this problem. Anyone point me to a reference? Is this in any way related to the version of Postgresql one is running? We're headed for 8, but have a bit of work before we can get there. We are currently on 7.4.16. Thanks for any info. -- Until later, Geoffrey Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety. - Benjamin Franklin