Mechanism for on-line prediction of future performance...

Details Mechanism for on-line prediction of future performance... Mechanism for on-line prediction of future performance...

2006-07-04

2006-07-04

Barlow, John (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system

Measured signal processing

C717S131000

Reexamination Certificate

active

07072805

ABSTRACT:
Disclosed are a method and system for predicting future values of a target metric associated with a task executed on a computer system. The method includes the steps of, over a given period of time, measuring at least one defined metric, transforming that measurement into a value for a predictor source metric, and using the value for the predictor source metric to obtain a predicted future value for said target metric. The preferred embodiment of this invention provides a flexible performance multi-predictor to solve the problem of providing accurate future behavior predictions for adaptive reconfiguration systems. The multi-predictor makes predictions about future workload characteristic by periodically reading available hardware counters. Also disclosed is a method and system for periodically reconfiguring an adaptive computer system by rescheduling tasks based on future behavior predictions.

REFERENCES:
patent: 2004/0111708 (2004-06-01), Calder et al.
Allan Snavely, et al. “Symbolic Jobscheduling with Priorities for a Simultaneous Multithreading Processor”,International Conference on Measurement and Modeling of Computer Systems(SIGMETRICS), Jun. 2002.
Sujay Parekh, et al. “Thread-Sensitive Scheduling for SMT Processors”,University of Washington Technical Report, pp. 1-18; 2000; and.
Christos D. Antonopoulos, et al. “Scheduling Algorithms with Bus Bandwidth Consideration for SMP's”,International Conference on Parallel Processing, pp. 1-21; Tawain, Oct. 2003.

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