![[assets/wl_io_aio_iocompletion.png|256]] # AioIoCompletion (Checking the Tube) The Chef is currently checking the **[[Workloads/IO/AIO/_Aio|Pneumatic Tube]]** to see if a requested page has arrived back from the basement. This is a non-blocking wait. The Chef sent the request earlier and has now returned to the tube station to see if the message canister has popped up yet.