On 2017-01-04 17:12, Janos Toth F. wrote:
I separated these 9 camera storages into 9 subvolumes (so now I have
10 subvols in total in this filesystem with the "root" subvol). It's
obviously way too early to talk about long term performance but now I
can tell that recursive defrag does NOT descend
I separated these 9 camera storages into 9 subvolumes (so now I have
10 subvols in total in this filesystem with the "root" subvol). It's
obviously way too early to talk about long term performance but now I
can tell that recursive defrag does NOT descend into "child"
subvolumes (it does not pick u
On 2017-01-03 13:16, Janos Toth F. wrote:
On Tue, Jan 3, 2017 at 5:01 PM, Austin S. Hemmelgarn
wrote:
I agree on this point. I actually hadn't known that it didn't recurse into
sub-volumes, and that's a pretty significant caveat that should be
documented (and ideally fixed, defrag doesn't need
On Tue, Jan 3, 2017 at 5:01 PM, Austin S. Hemmelgarn
wrote:
> I agree on this point. I actually hadn't known that it didn't recurse into
> sub-volumes, and that's a pretty significant caveat that should be
> documented (and ideally fixed, defrag doesn't need to worry about
> cross-subvolume stuff
On 2017-01-03 09:21, Janos Toth F. wrote:
So, in order to defrag "everything" in the filesystem (which is
possible to / potentially needs defrag) I need to run:
1: a recursive defrag starting from the root subvolume (to pick up all
the files in all the possible subvolumes and directories)
2: a no
So, in order to defrag "everything" in the filesystem (which is
possible to / potentially needs defrag) I need to run:
1: a recursive defrag starting from the root subvolume (to pick up all
the files in all the possible subvolumes and directories)
2: a non-recursive defrag on the root subvolume + (
Thanks for the comments.
We are in the midst of making defrag better. For now, -r option picks
up files of the dir specified, there is no way to defrag all subvol
tree with out scripting, something like this.
If /mnt is mounted with subvolid=5 (default).
for all s subvol in /mnt
do
I still find the defrag tool a little bit confusing from a user perspective:
- Does the recursive defrag (-r) also defrag the specified directory's
extent tree or should one run two separate commands for completeness
(one with -r and one without -r)?
- What's the target scope of the extent tree def
On 12/13/16 01:19, David Sterba wrote:
On Tue, Dec 06, 2016 at 12:39:37PM +0800, Anand Jain wrote:
The command,
btrfs fi defrag -v /btrfs
does nothing, it won't defrag the files under /btrfs as user
may expect. The command with recursive option
btrfs fi defrag -vr /btrfs
would defrag
On Tue, Dec 06, 2016 at 12:39:37PM +0800, Anand Jain wrote:
> The command,
>btrfs fi defrag -v /btrfs
> does nothing, it won't defrag the files under /btrfs as user
> may expect. The command with recursive option
>btrfs fi defrag -vr /btrfs
> would defrag all the files under /btrfs inclu
The command,
btrfs fi defrag -v /btrfs
does nothing, it won't defrag the files under /btrfs as user
may expect. The command with recursive option
btrfs fi defrag -vr /btrfs
would defrag all the files under /btrfs including files in
its sub directories.
While attempting to fix this. The
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