Re: how to understand "btrfs fi show" output? "No space left" issues

2016-09-20 Thread Peter Becker
for the future. disable COW for all database containers 2016-09-20 9:28 GMT+02:00 Peter Becker : > * If this NOT solve the "No space left" issues you must remove old snapshots. > > 2016-09-20 9:27 GMT+02:00 Peter Becker : >> Data, RAID1: total=417.12GiB,

Re: how to understand "btrfs fi show" output? "No space left" issues

2016-09-20 Thread Hugo Mills
On Tue, Sep 20, 2016 at 03:47:14PM +0900, Tomasz Chmielewski wrote: > How to understand the following "btrfs fi show" output? This gives a write-up (and worked example) of an answer to your question: https://btrfs.wiki.kernel.org/index.php/FAQ#Understanding_free_space.2C_using_the_original_tools

[PATCH v2 02/14] btrfs-progs: check: introduce function to find dir_item

2016-09-20 Thread Qu Wenruo
From: Lu Fengqi Introduce a new function find_dir_item() to find DIR_ITEM for the given key, and check it with the specified INODE_REF/INODE_EXTREF match. Signed-off-by: Lu Fengqi Signed-off-by: Qu Wenruo ---

Re: ChaCha20 vs. AES performance

2016-09-20 Thread Theodore Ts'o
On Tue, Sep 20, 2016 at 03:15:19AM -0800, Kent Overstreet wrote: > Not on the list or I would've replied directly, but on Haswell, ChaCha20 (in > software) is over 2x as fast as AES (in hardware), at realistic (for a > filesystem) block sizes: On Skylake and Broadwell processors, AES is faster