Hi,
(software) queues you are refering to are only involved, IF there is an overload situation. If the interface is not overloaded, all packets are immediately sent into the hardware queue (tx-ring). Thus packets are bypassing the software queues in this case.
If an overload situation exists, the command "sh queue serial 0/1/0" will give you a momentarily picture of your queues. The queuenumber is denoted as "Conversation ".
Regards, Martin