From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from plane.gmane.org ([80.91.229.3]:52275 "EHLO plane.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752168Ab3CWWWg (ORCPT ); Sat, 23 Mar 2013 18:22:36 -0400 Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1UJWq0-0005rn-OJ for linux-btrfs@vger.kernel.org; Sat, 23 Mar 2013 23:22:56 +0100 Received: from 50-0-67-239.dsl.static.fusionbroadband.com ([50.0.67.239]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 23 Mar 2013 23:22:56 +0100 Received: from rogerb by 50-0-67-239.dsl.static.fusionbroadband.com with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 23 Mar 2013 23:22:56 +0100 To: linux-btrfs@vger.kernel.org From: Roger Binns Subject: Re: [PATCH] btrfs: document mount options in Documentation/fs/btrfs.txt Date: Sat, 23 Mar 2013 15:22:22 -0700 Message-ID: References: <514DEB06.7000606@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 In-Reply-To: <514DEB06.7000606@redhat.com> Sender: linux-btrfs-owner@vger.kernel.org List-ID: -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 23/03/13 10:48, Eric Sandeen wrote: > Btrfs is a new copy on write filesystem for Linux aimed at How much longer does "new" get to be there as the filesystem has been going for well over half a decade. > + autodefrag + Detect small random writes into files and queue them up > for the + defrag process. Works best for small files; Not well suited > for + large database workloads. What is "large"? One man's large database is another's trivial database! Same applies to "small". Virtual machines are also in the category of large files with small random writes. Quantification would help a lot. Suggestions are "more than 10 random writes an hour to files larger than a gigabyte". Roger -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iEYEARECAAYFAlFOKx4ACgkQmOOfHg372QROFgCfRaaK6mlx3dn6E22Dy3c5PC2T itUAnR0WxlZ8bFtVnlD+hdJrsnc6s9gU =dkJp -----END PGP SIGNATURE-----