On Mon, Aug 16, 2010 at 09:43:09AM -0500, Anthony Liguori wrote: > >Also, ext4 is _very_ slow on O_SYNC writes (which is > >used in kvm with default cache). > > Yeah, we probably need to switch to sync_file_range() to avoid the > journal commit on every write. > No, we don't. sync_file_range does not actually provide any data integrity. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html