From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by yocto-www.yoctoproject.org (Postfix, from userid 118) id 35E7FE00E11; Thu, 12 Sep 2019 02:06:14 -0700 (PDT) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on yocto-www.yoctoproject.org X-Spam-Level: X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 X-Spam-HAM-Report: * -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% * [score: 0.0000] * -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no * trust * [209.85.167.50 listed in list.dnswl.org] * -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's * domain * -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature * 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily * valid Received: from mail-lf1-f50.google.com (mail-lf1-f50.google.com [209.85.167.50]) by yocto-www.yoctoproject.org (Postfix) with ESMTP id 116B9E00DE4 for ; Thu, 12 Sep 2019 02:06:12 -0700 (PDT) Received: by mail-lf1-f50.google.com with SMTP id q11so3760657lfc.11 for ; Thu, 12 Sep 2019 02:06:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=goto.fi; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=O5AIjF2x5rICQRgJTBbhPJsfhj1C2lsM2xMYH93VzlA=; b=ZWhfXhAgGZUnfQziTnyNfJ41yFr28eEihqVJaPtSTHf/lGgCSwyxXFZhfmf9UKc4lW BiKtNdoucW2bUOiJupBrVu6qD4oJU0oPuhmTMpZko1dO0PcESFUieg2cRYn7Np8aMaVx 8SWutMg+W0NvLKlBqLIl4CsFDwQZnY0rj6ZgQ= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=O5AIjF2x5rICQRgJTBbhPJsfhj1C2lsM2xMYH93VzlA=; b=MSK4KgYPuVeH0KW28KXp0NbquqxqB/mnXr1ArPGkLNXj69F8nVnsfHUQjNRhLJz/Np aqjpJ0G5oSq3eT3RLDNZ7H58auoOgf+rAJee68cvlfHMhfEqUK8/AQhQ+rUoXPoGWVFr rpuDTGl65CQ7Fer0dOfFYgTbLP3S1grfDj+RZU2faYw7+YOxD5Z1EYRA2AzlTtyZMUP/ VQJMpu3xHkvsAzqvTwgNTausGkIzBI+PJAqbNHlaxd4bGt+7XhUib2D6DGuEtB/nxOKK vOyDXvy5PZQ0mDsG1vAEs41RenkkGbWZWOuTXutSxgNn8sjZReFBg9JleF/H7v8ZMIXA rZEA== X-Gm-Message-State: APjAAAU0INEE6vjnmJxgwVjKuTOkM34sD5ZUGlzA9bL9mVY1wF/9hX98 Ube/fZLCAZDCXqepFakSEfPcF3dusSYlRmtqBkWTgg== X-Google-Smtp-Source: APXvYqzsJ5eIvCnzakDfz07ru2xRTjz2/xdw2Zq4y/HENVJYijM9VxHGNkvDRrOWgq2YgLD/FbXKm6WqK30rP3kPSCA= X-Received: by 2002:ac2:5c11:: with SMTP id r17mr27458879lfp.61.1568279171887; Thu, 12 Sep 2019 02:06:11 -0700 (PDT) MIME-Version: 1.0 References: <6F3C5ED776614BD8B5EE2E8DCAFBFAA3@PAULD> In-Reply-To: <6F3C5ED776614BD8B5EE2E8DCAFBFAA3@PAULD> From: Jussi Kukkonen Date: Thu, 12 Sep 2019 12:05:55 +0300 Message-ID: To: "Paul D. DeRocco" Cc: Yocto discussion list Subject: Re: One second timestamp resolution? X-BeenThere: yocto@yoctoproject.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: Discussion of all things Yocto Project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 12 Sep 2019 09:06:14 -0000 Content-Type: text/plain; charset="UTF-8" On Wed, 11 Sep 2019 at 08:53, Paul D. DeRocco wrote: > > I just noticed that I'm getting one-second resolution on all my > timestamps. This is for both ext4 and vfat partitions, and shows up in ls > --full-time and the stat command. What could account for this? My uname -a > output is "Linux CHROMA1 4.10.17-yocto-preempt-rt #1 SMP PREEMPT Wed Oct > 11 12:33:54 PDT 2017 i686 i686 i386 GNU/Linux" if that's any help. Also, > my ext4 mount options are "rw,noatime,nodiratime,data=ordered". I think file timestamp resolution on ext4 is one of the things that depend on inode size (ext4 does not enforce reasonable values because of compatibility with earlier versions I guess). So maybe check inode size (should be 256 bytes I think?). Jussi