International Business Machines Corporation

Peter Kin Leung Shum

Tsz-Kin Lau

Yongli An

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.

Method, system, and computer program for managing a queuing system

The present invention is directed to the quantitative measurement of the autonomic capabilities of computing systems. A method in accordance with an embodiment of the present invention includes: subjecting the computing system to a workload; injecting a disturbance into the computing system; providing a notification that the computing system has detected a problem in response to the injected disturbance; determining an amount of time required to initiate a recovery procedure to address the detected problem; and determining an amount of time required to execute the recovery procedure.

Quantitative measurement of the autonomic capabilities of computing systems

A computer implemented method, apparatus, and computer usable program code to execute a set of instructions a selected number of times to simulate user loads for a selected number of users. A selected number of traces are obtained in response to executing the set of instructions the selected number of times. The selected number of traces are played back concurrently to simulate the workloads on the database.

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Toronto, Canada

Peter Kin Leung Shum