-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 2013-10-22 09:42, Jan Engelhardt wrote:
On Sunday 2013-10-20 21:30, Carlos E. R. wrote:
These were the results:
time (real/user/sys) number used free of files space space
reiserfs 62m32s/ 11m24s/ 35m27s 1000000 286M 1,8G ext4 8m14s/1m28/4m41s 141736 541M 1,3G (fails) xfs 30m19s/ 5m25/ 17m7 488254 2,0G 104K
Note that xfs and btrfs have delayed allocations/reservations or so, which cause the filesystem logic to reserve a large region for the expected journal/data/something items (I have observed values around the order of 500 to 4096MB - `df` will indicate it), and will only release it after it is synced to disk.
In other words, a 2 GB disk may not be enough to hold all the temp things that xfs and btrfs want to use. You can of course mount with -o sync, at a given penalty.
Heck, btrfs considers 1 GB to be really really small; there's a -M mixed option to mkfs.btrfs just for it (though it is not one that has helped in my experiments with such small volumes).
There is something more: the btrfs partition crashes with this test. I can not empty it. I have tried 3 times, filling it up with small files, then deletting them (there are no snapshots), yet the partition remains full (with no files). I have to reformat it to be able to reuse it. (Bug 846807) Unknown if the last update solves this. - -- Cheers / Saludos, Carlos E. R. (from 12.3 x86_64 "Dartmouth" at Telcontar) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iEYEARECAAYFAlJmQpMACgkQtTMYHG2NR9UOLQCfVF5YDquYaolac4aLtnTBYRzB bx4An3PJmgCgCNzi3YVKlhxHQK5Xa1nf =DNVQ -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org