Andi Kleen wrote: > [LVM] always disables barriers if you don't apply a so far unmerged > patch that enables them in some special circumstances (only single > backing device) (I continue to be surprised at the un-safety of Linux fsync) > Not having barriers sometimes makes your workloads faster (and less > safe) and in other cases slower. I'm curious, how does it make them slower? Merely not issuing barrier calls seems like it will always be the same speed or faster. Thanks, -- Jamie -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html