Just because it can doesn't mean it's tolerable to have one core of their CPU eaten up just working on AES all day. Plus if it wasn't task set to a CPU you'd se

Just because it can doesn't mean it's tolerable to have one core of their CPU eaten up just working on AES all day. Plus if it wasn't task set to a CPU you'd see massive latency hits on disk access even the CPU could keep up. The kernel still has to schedule the task and load balance.