Computer system workload manager

A workload manager system for a computer having limited resources, said system comprising:

• a sampling module adapted for sampling and storing a usage of a resource of said computer system as time-stamped resource usage values;
• a comparison unit adapted for comparing said time-stamped resource usage values with predetermined time-stamped performance goal values;
• an assignment unit adapted for assigning a time-stamped priority value to an application that is running based on at least one of said time-stamped performance goal values;
• a retrieving unit adapted for retrieving a portion of said time-stamped resource usage values and a related portion of said time-stamped performance goal values for said application;
• an identification module adapted for identifying a future workload demand value by applying a time-series analysis algorithm to said time-stamped resource usage values and said time-stamped performance goal values for said application resulting in workload demand time frames and related amplitudes of said workload demand time frames;
• and
• an adjustment unit adapted for adjusting a dispatch priority value for said application by setting a minimum dispatch priority value for said application based on said future workload demand value.

A computer program product for enhancing a workload manager for a computer having limited resources, said computer program product comprising a computer readable storage medium having program instructions embodied therewith, said program instructions being executable by one or more computing systems or controllers to cause said one or more computing systems to:

• sample and store a usage of a resource of said computer system as time-stamped resource usage values;
• compare said time-stamped resource usage values with predetermined time-stamped performance goal values;
• assign, by said workload manager, a time-stamped priority value to an application that is running based on at least one of said time-stamped performance goal values;
• retrieve a portion of said time-stamped historic resource usage values and a related portion of time-stamped performance goal values for said application;
• identify a future workload demand value by applying a time-series analysis algorithm to said time-stamped resource usage values and said time-stamped performance goal values for said application resulting in workload demand time frames and related amplitudes of workload demand time frames;
• and
• adjusting a dispatch priority value for said application by setting a minimum dispatch priority value for said application based on said future workload demand value.