I see that this high sys load and loadavg did not appear gradualy. It appeared first time about 7 days ago and were present every backup, every night since then. During backup top shows higher cpu load on 4216 root 20 0 0 0 0 R 20.3 0.0 284:25.83 btrfs-delayed-m 4222 root 20 0 0 0 0 D 19.6 0.0 203:23.89 btrfs-transacti however one cannot really debug sys load so it does not tell much. Scenario here is quite simple (rsync to working dir and then snapshot, next night rsync (in place) to working dir and again snapshot). Rsync is killed at 08:00. I will try rebooting server this night but I doubt it will change anything on those high loads during backup to btrfs partition. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
