From owner-freebsd-fs@FreeBSD.ORG Fri Feb 10 16:51:23 2012 Return-Path: <owner-freebsd-fs@FreeBSD.ORG> Delivered-To: fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 60F5C106566C for <fs@freebsd.org>; Fri, 10 Feb 2012 16:51:23 +0000 (UTC) (envelope-from ed@hoeg.nl) Received: from mx0.hoeg.nl (mx0.hoeg.nl [IPv6:2a01:4f8:101:5343::aa]) by mx1.freebsd.org (Postfix) with ESMTP id EED5D8FC12 for <fs@freebsd.org>; Fri, 10 Feb 2012 16:51:22 +0000 (UTC) Received: by mx0.hoeg.nl (Postfix, from userid 1000) id 07BA52A28CCE; Fri, 10 Feb 2012 17:51:22 +0100 (CET) Date: Fri, 10 Feb 2012 17:51:22 +0100 From: Ed Schouten <ed@80386.nl> To: Gary Jennejohn <gljennjohn@googlemail.com> Message-ID: <20120210165122.GT1860@hoeg.nl> References: <20120210135527.GR1860@hoeg.nl> <20120210172342.7974cc32@ernst.jennejohn.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="jk5HhkA9Kov5Oxsi" Content-Disposition: inline In-Reply-To: <20120210172342.7974cc32@ernst.jennejohn.org> User-Agent: Mutt/1.5.21 (2010-09-15) Cc: fs@freebsd.org Subject: Re: Increase timestamp precision? X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems <freebsd-fs.freebsd.org> List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-fs>, <mailto:freebsd-fs-request@freebsd.org?subject=unsubscribe> List-Archive: <http://lists.freebsd.org/pipermail/freebsd-fs> List-Post: <mailto:freebsd-fs@freebsd.org> List-Help: <mailto:freebsd-fs-request@freebsd.org?subject=help> List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-fs>, <mailto:freebsd-fs-request@freebsd.org?subject=subscribe> X-List-Received-Date: Fri, 10 Feb 2012 16:51:23 -0000 --jk5HhkA9Kov5Oxsi Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi Gary, * Gary Jennejohn <gljennjohn@googlemail.com>, 20120210 17:23: > Is this only visible in the kernel? I don't see any difference in the > output of ls -lT whether the sysctl is set to 0 or 1. It is visible for userspace, but I guess not for ls(1). You can test it by doing: echo foo > foo echo bar > bar diff -u foo bar And it prints the header at the top with the raw timestamps. It's not really useful for a regular user to see the nanoseconds, but for tools like make(1) and others that depend on timestamps to do decision making, it would be nice to have. --=20 Ed Schouten <ed@80386.nl> WWW: http://80386.nl/ --jk5HhkA9Kov5Oxsi Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (FreeBSD) iQIcBAEBAgAGBQJPNUsJAAoJEG5e2P40kaK7j9YQAId2XvJhCprq8eIbxa1pVuqo JnJOEiwdyci6ZAKhwvCCyAM4ZkARhnirp/v9kWy7rQWwMfojgxglC64L2SbpLaBO EDPgRQ1ORrvi8lcR83vtbXldOSDTCBG+i/R8RoEfEw6WXCx5RITdPRhLspG8TqfU fYOcXkPjq96iNyoXfmaKXSim4MgGHzrFp1Ulc43reS2Ly7hGYO8AHNWKKbLgtedl DKvbD0i3fN1Rn+LLDvBhmM8N9iScarKJgsCgSGKmwJevduxgr1uojhmXfPBwiTO/ 5RKnyOSUdRxmMOnssgaVkSKwu4I7m5FvA1NF4dq5c5TZdSSB8aESCcoLiFAp4LaR 2SlCLp5+p50DGv/pqNcQBuDdBPSH9SklXczZdwtbRLkwJhumFZvUONJ4zWotO/rl F1l2XD8pIM6vIJ/tBCpymemnnBl9h0KZcWHyKTgd2G09B/qi+f7yOG3kHNwAshrm TJNbrsPG7CvmQlyeWZY1vykaq6SpX/ZcSliEoODe60ix0hPU30/pMISVSIkwqVNe CXOmHuOMgJSzvDT6621bDQsCMv1Qid3p2IyuBuJDPM7Qs76j0/OqnDkYjJncIyvp Ep9XJZlCeRA79EKBfutIXZq21Jp+H4rXbz+N6/JJRHbWUyzyCL+fMyxBoHDLaIUj QN3W1X8ZkcQ1R+Cf3kSG =iM8N -----END PGP SIGNATURE----- --jk5HhkA9Kov5Oxsi--