From owner-freebsd-stable@FreeBSD.ORG Thu Dec 21 18:22:27 2006 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 39E7016A407 for ; Thu, 21 Dec 2006 18:22:27 +0000 (UTC) (envelope-from jdc@koitsu.dyndns.org) Received: from rwcrmhc11.comcast.net (rwcrmhc11.comcast.net [216.148.227.151]) by mx1.freebsd.org (Postfix) with ESMTP id 2587A13C458 for ; Thu, 21 Dec 2006 18:22:27 +0000 (UTC) (envelope-from jdc@koitsu.dyndns.org) Received: from icarus.home.lan (c-67-174-220-97.hsd1.ca.comcast.net[67.174.220.97]) by comcast.net (rwcrmhc11) with ESMTP id <20061221181221m11003vudce>; Thu, 21 Dec 2006 18:12:21 +0000 Received: by icarus.home.lan (Postfix, from userid 1000) id A69A91FA038; Thu, 21 Dec 2006 10:12:21 -0800 (PST) Date: Thu, 21 Dec 2006 10:12:21 -0800 From: Jeremy Chadwick To: Michael Proto Message-ID: <20061221181221.GA87297@icarus.home.lan> Mail-Followup-To: Michael Proto , freebsd-stable@freebsd.org References: <20061219124151.GA33385@icarus.home.lan> <20061219132032.GA66632@slackbox.xs4all.nl> <45880BA6.80907@jellydonut.org> <20061219165741.GA40101@icarus.home.lan> <458826AF.7040908@jellydonut.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <458826AF.7040908@jellydonut.org> X-PGP-Key: http://jdc.parodius.com/pubkey.asc User-Agent: Mutt/1.5.13 (2006-08-11) Cc: freebsd-stable@freebsd.org Subject: Re: ntpd flipping between PLL and FLL mode X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 21 Dec 2006 18:22:27 -0000 On Tue, Dec 19, 2006 at 12:51:43PM -0500, Michael Proto wrote: > I made the change some time ago after combing newsgroups for this issue, > so my memory is a little hazy, but I seem to remember something about > the FLL/PLL switch being right at about 1024s. Check the Tuning section > here: > > http://www.eecis.udel.edu/~ntp/ntpfaq/NTP-s-algo.htm An interesting read. It doesn't give you an exact solution, but it does hint at what you've taken the time to point out above. I've set "maxpoll 9" on each "server" entry, on each of our boxes. So far (48+ hours later), still no signs of FLL/PLL switching. Very cool. Thank you very much for this recommendation. :-) -- | Jeremy Chadwick jdc at parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB |