From owner-freebsd-arch@FreeBSD.ORG Thu Oct 18 20:18:40 2007 Return-Path: Delivered-To: arch@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 8597E16A419; Thu, 18 Oct 2007 20:18:40 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from speedfactory.net (mail6.speedfactory.net [66.23.216.219]) by mx1.freebsd.org (Postfix) with ESMTP id 1E24013C458; Thu, 18 Oct 2007 20:18:39 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from server.baldwin.cx (unverified [66.23.211.162]) by speedfactory.net (SurgeMail 3.8p) with ESMTP id 215044939-1834499 for multiple; Thu, 18 Oct 2007 16:20:29 -0400 Received: from localhost.corp.yahoo.com (john@localhost [127.0.0.1]) (authenticated bits=0) by server.baldwin.cx (8.13.8/8.13.8) with ESMTP id l9IKI8Yp021114; Thu, 18 Oct 2007 16:18:14 -0400 (EDT) (envelope-from jhb@freebsd.org) From: John Baldwin To: Alexander Leidinger Date: Thu, 18 Oct 2007 14:50:37 -0400 User-Agent: KMail/1.9.6 References: <200710171245.36949.jhb@freebsd.org> <20071018133949.1430dlowvks8w4kg@webmail.leidinger.net> In-Reply-To: <20071018133949.1430dlowvks8w4kg@webmail.leidinger.net> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200710181450.38224.jhb@freebsd.org> X-Greylist: Sender succeeded SMTP AUTH authentication, not delayed by milter-greylist-2.0.2 (server.baldwin.cx [127.0.0.1]); Thu, 18 Oct 2007 16:18:14 -0400 (EDT) X-Virus-Scanned: ClamAV 0.88.3/4545/Wed Oct 17 17:05:57 2007 on server.baldwin.cx X-Virus-Status: Clean X-Spam-Status: No, score=-4.4 required=4.2 tests=ALL_TRUSTED,AWL,BAYES_00 autolearn=ham version=3.1.3 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on server.baldwin.cx Cc: arch@freebsd.org, "Constantine A. Murenin" Subject: Re: sensors fun.. X-BeenThere: freebsd-arch@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussion related to FreeBSD architecture List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 18 Oct 2007 20:18:40 -0000 On Thursday 18 October 2007 07:39:49 am Alexander Leidinger wrote: > To me it looks like your proposal spans more than one of the above > described layers in one package. It seems you describe what I call > single-system sensors framework above. It looks like you want to have > this with parts of it in the kernel. I don't think this is a good idea > as I don't think userland data should be feed into the kernel. Could > you please describe where you see benefits of your architecture > compared to the description I provided above? Nowhere do I suggest to feed userland data into the kernel just so it can be reexported to userland. Instead, I think the "public" interface that systat, monitoring daemons, SNMP, etc. should be a userland interface that can have multiple backends. It can pull data from a sensor implemented in userland or a sensor implemented in the kernel. -- John Baldwin