SYSTEM OVERHEAD-BASED AUTOMATIC ADJUSTING OF NUMBER OF RUNNING PROCESSORS WITHIN A SYSTEM

摘要

Data processing system efficiency is improved by automatically determining whether to adjust for a next time interval a number N of processors running within the system for processing a workload. The automatically determining includes obtaining a measure of operating system overhead by evaluating one or more characteristics of processor time of the N processors consumed within the system for a time interval, and obtaining a measure of system utilization of the N processors running within the system for processing the workload for the time interval. The automatically determining further includes automatically ascertaining whether to adjust the number N of processors running within the system for the next time interval to improve system efficiency using the obtained measure of operating system overhead and the obtained measure of system utilization of the N processors.

主权项

1. A computer program product comprising:
a computer-readable storage medium readable by a processor and storing executable instructions for execution by the processor for performing a method comprising:
automatically determining whether to adjust a number N of processors running within a system for processing a workload, the system comprising an operating system, and the automatically determining comprising:
obtaining a measure of operating system overhead by evaluating one or more characteristics of processor time of the N processors consumed within the system for a time interval;obtaining a measure of system utilization of the N processors running within the system for processing the workload for the time interval; andautomatically ascertaining whether to adjust the number N of processors running within the system for a next time interval to improve system efficiency using, at least in part, the obtained measure of operating system overhead and the obtained measure of system utilization of the N processors.