Comment 16 for bug 1208993

When copying a large amount (multilple files) form an external drive (USB3 cable), my brand new Lenovo T450s laptop (20GB RAM, ... high specs) has frequent latencies/freezes. Doing nearly any operation takes several extra seconds, with zero responsiveness (e.g. trying to move mouse or switch to tty screen) in the mean time. Quite unusable. This is under the latest 15.10.