Received: from localhost (maia-3.hub.org [200.46.204.184]) by postgresql.org (Postfix) with ESMTP id 823E59FC33C for ; Fri, 23 Feb 2007 15:39:37 -0400 (AST) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.184]) (amavisd-new, port 10024) with ESMTP id 69640-07 for ; Fri, 23 Feb 2007 15:39:26 -0400 (AST) X-Greylist: from auto-whitelisted by SQLgrey-1.7.4 Received: from cassarossa.samfundet.no (cassarossa.samfundet.no [129.241.93.19]) by postgresql.org (Postfix) with ESMTP id 428019FC23A for ; Fri, 23 Feb 2007 15:39:28 -0400 (AST) Received: from trofast.sesse.net ([129.241.93.32]) by cassarossa.samfundet.no with esmtp (Exim 4.50) id 1HKgGJ-00009V-5a; Fri, 23 Feb 2007 20:39:23 +0100 Received: from sesse by trofast.sesse.net with local (Exim 3.36 #1 (Debian)) id 1HKgFq-0002Yj-00; Fri, 23 Feb 2007 20:38:54 +0100 Date: Fri, 23 Feb 2007 20:38:54 +0100 From: "Steinar H. Gunderson" To: Geoffrey Cc: pgsql-performance@postgresql.org Subject: Re: which Xeon processors don't have the context switching problem Message-ID: <20070223193854.GA9763@uio.no> Mail-Followup-To: Geoffrey , pgsql-performance@postgresql.org References: <45DF3B15.1070609@3times25.net> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <45DF3B15.1070609@3times25.net> X-Operating-System: Linux 2.6.19 on a x86_64 X-Message-Flag: Outlook? --> http://www.mozilla.org/products/thunderbird/ User-Agent: Mutt/1.5.13 (2006-08-11) X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200702/255 X-Sequence-Number: 23309 On Fri, Feb 23, 2007 at 02:05:57PM -0500, Geoffrey wrote: > In searching the archives, I can't find any specific info indentifying > which Xeon processors don't have this problem. AFAIK the cut-off point is at the Woodcrests. They are overall much better suited to PostgreSQL than the older Xeons were. It's slightly unfortunate that AMD and Intel cling to the Opteron and Xeon names even though they're making significant architecture changes, but that's life, I guess. /* Steinar */ -- Homepage: http://www.sesse.net/