![[assets/wl_io_aio_iouringsubmit.png|256]] # AioIoUringSubmit (Loading the Tube) The Chef is currently pushing a message into the **[[Workloads/IO/AIO/_Aio|Pneumatic Tube]]** and waiting for the suction to take it. This is the very first step of an asynchronous request. If you see this wait frequently, it means the tube system is currently overwhelmed with canisters and cannot take any more immediately.