disclosed is a queuing system implemented method , a queuing system and an article of manufacture . the queuing system implemented method directs the queuing system to manage a queue according to a quality of service parameter . the queue is associated with the queuing system . the queue is used for receiving requests . the queue is associated with a worker thread used to process contents of the queue . the queuing system implemented method includes : placing the request in the queue , permitting the worker thread to process the placed request , determining a response time , the response time being the time taken to complete processing of the placed request , and adjusting the worker thread if the determined response time does not satisfy the quality of service parameter , the adjusted worker thread used for processing another request placed in the queue in which a new response time taken to complete processing of the another placed request satisfying the quality of service parameter .