On 7/25/13 12:36 PM, Cristian Rodríguez wrote:
El 25/07/13 12:27, Jeff Mahoney escribió:
I'm sure it is. I've added a test user
on my development node with its
home directory on a btrfs file system and can't reproduce this with
Chromium yet. I'm reviewing the readahead code, though, since it's
different than the regular read path and there might be races
interacting with extent_readpages.
My mount options are "noatime,nobarrier,compress,discard" ...HRMM..now
that I think about it, I should not be using "nobarrier" :-P
noatime: effect is in VFS
nobarrier: (this is really ok if you have write cache disabled)
compress: not enabled, i don't trust it yet
discard: not enabled, huge impact on performance during big unlinks
Would you be willing to retest without compress?