From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1QnYXZ-0007mU-7i for garchives@archives.gentoo.org; Sun, 31 Jul 2011 16:06:57 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id D54D421C301; Sun, 31 Jul 2011 16:06:44 +0000 (UTC) Received: from mail-fx0-f53.google.com (mail-fx0-f53.google.com [209.85.161.53]) by pigeon.gentoo.org (Postfix) with ESMTP id 0B57D21C04E for ; Sun, 31 Jul 2011 16:05:39 +0000 (UTC) Received: by fxd23 with SMTP id 23so5443906fxd.40 for ; Sun, 31 Jul 2011 09:05:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=VAd+xBUElrt1PyUi5BrGTcGlhmk638+qxlOn9GDwx10=; b=dHFkkxnxrPBa3kUgNJbeGNouvnolXG+bbQ3hvERMnDkSKhZ7XgWs5dzxbMKh3PPWCZ mA5EJLBojVzZQWpJCOlX6E60lDEjTqVza7bp+cz1nvj/xDagpow33GfFZBh48kszdxp0 2IEKjL5MbQ377ebBj6zYNFH/ES4d+vqIv3VXo= Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Received: by 10.223.28.65 with SMTP id l1mr5007353fac.136.1312128339151; Sun, 31 Jul 2011 09:05:39 -0700 (PDT) Received: by 10.223.28.139 with HTTP; Sun, 31 Jul 2011 09:05:39 -0700 (PDT) In-Reply-To: <201107311650.29138.peter@humphrey.ukfsn.org> References: <201107311650.29138.peter@humphrey.ukfsn.org> Date: Sun, 31 Jul 2011 12:05:39 -0400 Message-ID: Subject: Re: [gentoo-user] jbd2 keeps spinning my disk up From: Michael Mol To: gentoo-user@lists.gentoo.org Content-Type: text/plain; charset=UTF-8 X-Archives-Salt: X-Archives-Hash: b4629cbb2216ab62b3083bb6c8e720da On Sun, Jul 31, 2011 at 11:50 AM, Peter Humphrey wrote: > Hello list, > > My little Atom box's hard disk spins up every minute or so, and watching > iotop I see it's jbd2 that does it. > > This is a kernel component, and the menuconfig help text says it's set > automatically by having the block layer included (and who hasn't?) together > with ext4. > > Google shows that others have similar problems. > > Before I re-create all the partitions as reiserfs - and remove ext4 from the > kernel - does anyone have a lighter solution? If it's a polling commit-journal-to-disk behavior, there's certain to be a configurable parameter somewhere to control the poll rate. However, if it's doing that, then it probably has something it needs to write to disk. That might be metadata updates. Have you tried adding things to your mount parameters like 'noatime' or 'relatime'? What about "data=writeback"? -- :wq