From owner-freebsd-current@FreeBSD.ORG Tue Feb 24 15:39:33 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 2B1FA16A4CE; Tue, 24 Feb 2004 15:39:33 -0800 (PST) Received: from fledge.watson.org (fledge.watson.org [204.156.12.50]) by mx1.FreeBSD.org (Postfix) with ESMTP id BAA4843D2D; Tue, 24 Feb 2004 15:39:32 -0800 (PST) (envelope-from robert@fledge.watson.org) Received: from fledge.watson.org (localhost [127.0.0.1]) by fledge.watson.org (8.12.10/8.12.10) with ESMTP id i1ONcfDL062186; Tue, 24 Feb 2004 18:38:41 -0500 (EST) (envelope-from robert@fledge.watson.org) Received: from localhost (robert@localhost)i1ONce6h062183; Tue, 24 Feb 2004 18:38:40 -0500 (EST) (envelope-from robert@fledge.watson.org) Date: Tue, 24 Feb 2004 18:38:40 -0500 (EST) From: Robert Watson X-Sender: robert@fledge.watson.org To: Willem Jan Withagen In-Reply-To: <084901c3fb23$0ec737f0$471b3dd4@dual> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII cc: freebsd-performance@FreeBSD.ORG cc: current@FreeBSD.ORG Subject: Re: The effects of WITNESS and INVARIANTS X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 24 Feb 2004 23:39:33 -0000 On Tue, 24 Feb 2004, Willem Jan Withagen wrote: > I understand your concern and will take your remark as made here, and > put it in the document as a "Nota Bene"... And I'll emphasise the fact > that the 5-stable fact is the turning corner for this matter. There was recently a thread on the general topic of preparing FreeBSD for benchmarking, which you might want to take a look at: http://www.bsdforums.org/forums/showthread.php?threadid=18304 We have a lot of debugger features on, and there are a number of general features that may adversely impact microbenchmarks. I thought this was getting added to the FreeBSD handbook or developer's handbook somewhere, but Google isn't finding it... Robert N M Watson FreeBSD Core Team, TrustedBSD Projects robert@fledge.watson.org Senior Research Scientist, McAfee Research