From owner-freebsd-performance@FreeBSD.ORG Sun Jul 20 11:26:52 2003 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id E29D837B401; Sun, 20 Jul 2003 11:26:52 -0700 (PDT) Received: from misery.sdf.com (misery.sdf.com [207.200.153.226]) by mx1.FreeBSD.org (Postfix) with ESMTP id 3FB3C43F3F; Sun, 20 Jul 2003 11:26:51 -0700 (PDT) (envelope-from tom@sdf.com) Received: from tom (helo=localhost) by misery.sdf.com with local-esmtp (Exim 2.12 #1) id 19eH8m-00078M-00; Sun, 20 Jul 2003 09:34:28 -0700 Date: Sun, 20 Jul 2003 09:34:25 -0700 (PDT) From: Tom Samplonius To: Sean Chittenden In-Reply-To: <20030720110939.GN24507@perrin.int.nxad.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII cc: freebsd-database@freebsd.org cc: freebsd-performance@freebsd.org cc: Paul Pathiakis Subject: Re: Tuning for PostGreSQL Database X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 20 Jul 2003 18:26:53 -0000 On Sun, 20 Jul 2003, Sean Chittenden wrote: > > FreeBSD 4.8 or 5.1? > > 4.8 is currently faster than 5.1. Probably not, especially for SMP. 4.8 uses a single giant lock on the kernel, and 5.1 has that mostly removed. Tom