In <[🔎] 4DBD0D23.1080903@hardwarefreak.com>, Stan Hoeppner wrote: >Independent Linux filesystem tests performed by an IBM engineer to track >BTRFS performance during development. XFS trounces the others in most >tests: These results are interesting and useful, but I think "trounces" is a poor description for what XFS does. Not using barriers undermines data consistency guarantees, I think it is best to ignore the 2.6.35-rc5-autokern1-ext3-*-ext3, 2.6.35-rc5-autokern1-ext4-*- ext4-nobarrier, and 2.6.35-rc5-autokern1-xfs-*-xfx-nobarrier entries. So that btrfs doesn't remain the only filesystem with 2 entries, I'll also ignore the 2.6.35-rc5-autokern1-btrfs-*-btrfs-nocow entry, as it is non- default. >http://btrfs.boxacle.net/repository/raid/2.6.35-rc5/2.6.35-rc5/2.6.35-rc5_La >rge_file_creates_num_threads=1.html On the graphs, XFS is, respectively: 2nd, 4th, 2nd, 4th >http://btrfs.boxacle.net/repository/raid/2.6.35-rc5/2.6.35-rc5/2.6.35-rc5_La >rge_file_creates_num_threads=16.html 2nd, 1st, 2nd, 1st >http://btrfs.boxacle.net/repository/raid/2.6.35-rc5/2.6.35-rc5/2.6.35-rc5_La >rge_file_creates_num_threads=128.html 1st, 1st, 1st, 1st >http://btrfs.boxacle.net/repository/raid/2.6.35-rc5/2.6.35-rc5/2.6.35-rc5_La >rge_file_random_writes._num_threads=1.html 1st, 4th, 1st, 4th >http://btrfs.boxacle.net/repository/raid/2.6.35-rc5/2.6.35-rc5/2.6.35-rc5_La >rge_file_random_writes._num_threads=16.html 2nd, 1st, 2nd, 2nd >http://btrfs.boxacle.net/repository/raid/2.6.35-rc5/2.6.35-rc5/2.6.35-rc5_La >rge_file_random_writes._num_threads=128.html 2nd, 4th, 2nd, 2nd >http://btrfs.boxacle.net/repository/raid/2.6.35-rc5/2.6.35-rc5/2.6.35-rc5_Ma >il_server_simulation._num_threads=1.html 5th, 1st, 5th, 1st, 3rd >http://btrfs.boxacle.net/repository/raid/2.6.35-rc5/2.6.35-rc5/2.6.35-rc5_Ma >il_server_simulation._num_threads=16.html 5th, 1st, 5th, 5th, 1st >http://btrfs.boxacle.net/repository/raid/2.6.35-rc5/2.6.35-rc5/2.6.35-rc5_Ma >il_server_simulation._num_threads=128.html 4th, 2nd, 4th, 4th, 2nd I wouldn't say that is a "trouncing", since it doesn't even win in many categories. -- Boyd Stephen Smith Jr. ,= ,-_-. =. bss@iguanasuicide.net ((_/)o o(\_)) ICQ: 514984 YM/AIM: DaTwinkDaddy `-'(. .)`-' http://iguanasuicide.net/ \_/
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