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? -Jeff -- Jeff Mahoney SUSE Labs