From mboxrd@z Thu Jan 1 00:00:00 1970 From: Denny Page Subject: Re: Extending socket timestamping API for NTP Date: Mon, 27 Mar 2017 12:21:28 -0700 Message-ID: <4735D473-34CB-4530-8FA5-D105151E02D8@me.com> References: <20170207140144.GA11233@localhost> <20170209080242.GA1698@localhost.localdomain> <20170209110941.GA1449@localhost> <20170323162145.GB8192@localhost> <6121D504-288F-4C9B-9AB3-D1C8292965D5@me.com> <20170324094530.GE8192@localhost> <89CFCD8E-1A58-48C5-9D6E-99695502CFD9@me.com> <20170327101324.GI8192@localhost> <20170327142925.GA13305@localhost.localdomain> <6DE3E5F4-E69F-4334-9012-FD273ACA3C5B@me.com> <20170327182828.GA2254@netboy> Mime-Version: 1.0 (Mac OS X Mail 10.2 \(3259\)) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Cc: Miroslav Lichvar , netdev@vger.kernel.org, Jiri Benc , "Keller, Jacob E" , Willem de Bruijn To: Richard Cochran Return-path: Received: from st11p06im-asmtp001.me.com ([17.172.125.149]:39177 "EHLO st11p06im-asmtp001.me.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751716AbdC0TVc (ORCPT ); Mon, 27 Mar 2017 15:21:32 -0400 Received: from process-dkim-sign-daemon.st11p06im-asmtp001.me.com by st11p06im-asmtp001.me.com (Oracle Communications Messaging Server 7.0.5.38.0 64bit (built Feb 26 2016)) id <0ONH00800N2RX300@st11p06im-asmtp001.me.com> for netdev@vger.kernel.org; Mon, 27 Mar 2017 19:21:30 +0000 (GMT) In-reply-to: <20170327182828.GA2254@netboy> Sender: netdev-owner@vger.kernel.org List-ID: [Resend in plain text for vger] > On Mar 27, 2017, at 11:28, Richard Cochran = wrote: >=20 > I didn't do anything super methodical, and I didn't keep notes, but I > had a phyter (whose delays were published by TI and independently > confirmed in a ISPCS paper by Christian Riesch) and an i210 with a 100 > MBit link and with a PPS between them. The phyter's numbers are > correct to within a nanosecond, and I saw that the i210 was repeatedly > landing at the published extreme of the range. I don't remember which > extreme, and I didn't repeat more than a few times, however. Do you still have the resulting correction values from this? Thanks, Denny