From owner-freebsd-stable@FreeBSD.ORG Thu Dec 20 08:36:02 2007 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 81D1316A41A; Thu, 20 Dec 2007 08:36:02 +0000 (UTC) (envelope-from peterjeremy@optushome.com.au) Received: from mail13.syd.optusnet.com.au (mail13.syd.optusnet.com.au [211.29.132.194]) by mx1.freebsd.org (Postfix) with ESMTP id 1A8D913C44B; Thu, 20 Dec 2007 08:36:01 +0000 (UTC) (envelope-from peterjeremy@optushome.com.au) Received: from server.vk2pj.dyndns.org (c220-239-20-82.belrs4.nsw.optusnet.com.au [220.239.20.82]) by mail13.syd.optusnet.com.au (8.13.1/8.13.1) with ESMTP id lBK8Zuap004999 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 20 Dec 2007 19:35:57 +1100 Received: from server.vk2pj.dyndns.org (localhost.vk2pj.dyndns.org [127.0.0.1]) by server.vk2pj.dyndns.org (8.14.1/8.14.1) with ESMTP id lBK8ZuxA064436; Thu, 20 Dec 2007 19:35:56 +1100 (EST) (envelope-from peter@server.vk2pj.dyndns.org) Received: (from peter@localhost) by server.vk2pj.dyndns.org (8.14.1/8.14.1/Submit) id lBK8Zt5O064435; Thu, 20 Dec 2007 19:35:55 +1100 (EST) (envelope-from peter) Date: Thu, 20 Dec 2007 19:35:55 +1100 From: Peter Jeremy To: Mark Fullmer Message-ID: <20071220083555.GO79196@server.vk2pj.dyndns.org> References: <20071217102433.GQ25053@tnn.dglawrence.com> <20071220011626.U928@besplex.bde.org> <814DB7A9-E64F-4BCA-A502-AB5A6E0297D3@eng.oar.net> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="gKMricLos+KVdGMg" Content-Disposition: inline In-Reply-To: <814DB7A9-E64F-4BCA-A502-AB5A6E0297D3@eng.oar.net> X-PGP-Key: http://members.optusnet.com.au/peterjeremy/pubkey.asc User-Agent: Mutt/1.5.16 (2007-06-09) Cc: freebsd-net@freebsd.org, freebsd-stable@freebsd.org Subject: Re: Packet loss every 30.999 seconds 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, 20 Dec 2007 08:36:02 -0000 --gKMricLos+KVdGMg Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Dec 19, 2007 at 12:06:59PM -0500, Mark Fullmer wrote: >Thanks for the other info on timer resolution, I overlooked >clock_gettime(). If you have a UP system with a usable TSC (or equivalent) then using rdtsc() (or equivalent) is a much cheaper way to measure short durations with high resolution. --=20 Peter Jeremy Please excuse any delays as the result of my ISP's inability to implement an MTA that is either RFC2821-compliant or matches their claimed behaviour. --gKMricLos+KVdGMg Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.4 (FreeBSD) iD8DBQFHailr/opHv/APuIcRAqRQAJ4x4iTL9WiMWXy6VHcl9DLyMRWLEACdHJXI I3yP2HkQ+YAf+Ka8s/qSEoM= =6ncl -----END PGP SIGNATURE----- --gKMricLos+KVdGMg--