Theodore Tso <tytso@xxxxxxx> writes: > That would be great, although I think the major issue is not > necessarily the performance problems of using an LVM snapshot on a > very busy filesystem (althouh I could imagine for some users this > might be an issue), but rather for filesystem devices that aren't > using LVM at all. (I've heard some complaints that LVM imposes a > performance penalty even if you aren't using a snapshot; has anyone It always disables barriers if you don't apply a so far unmerged patch that enables them in some special circumstances (only single backing device) Not having barriers sometimes makes your workloads faster (and less safe) and in other cases slower. -Andi -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
