On Aug 24, 2013, at 6:23 AM, Duncan <1i5t5.duncan@xxxxxxx> wrote: > I recommend autodefrag for general use, as well, but you'll want to have > it enabled when you first start copying data to the filesystem, and some > distros don't enable it by default and setup a system on btrfs, which > means there's fragmentation to begin with, and performance will probably > be bad for awhile (even on newly setup systems!) when the option is first > enabled as a result. You can readup on defrag on the wiki for a defrag > command that should fix the problem, but unfortunately the command isn't > as straightforward as one might expect. At least Fedora's installer developers have made it pretty clear they don't intend to use non-default mount options like this. So if autodefrag is really that important for general use, it needs to be part of the default mount options. And quite honestly, with as many changes that happen with btrfs, I think it's better if btrfs developers are making the decisions to add/remove what they think should be current default mount options for general purpose, rather than installer developers or users. Especially when the command isn't straightforward. Chris Murphy -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
