1. A method, in a data processing system, for performing a wake-and-go operation, the method comprising: detecting a thread that is waiting for an event that modifies a data value associated with a target address; populating a wake-and-go storage array with the target address; storing thread state information for the thread in a thread state storage; placing the thread in a sleep state; and responsive to the event that modifies a data value associated with the target address, reloading the thread state information from the thread state storage and placing the thread in a non-sleep state.