A Control Theory Approach to Improve the Real-Time Capability of Multi-Threaded Microprocessors

Our aim is to investigate if it is possible to control the throughput (IPC rate) of a thread running on a simultaneous multi-threaded microprocessor by a closed feedback loop. We showed in previous experimental studies that the proposed approach works. In this paper we discuss the control theory app...

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Bibliographic Details
Main Authors: Brinkschulte, U., Pacher, M.
Format: Conference Proceeding
Language:English
Subjects:
Adaptive control
Clocks
Communication system control
Control theory
Control theory in high-end microprocessors
Delay
IPC rate
Mathematical model
Microprocessors
real-time microprocessors
Robotics and automation
Throughput
Yarn
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Summary:Our aim is to investigate if it is possible to control the throughput (IPC rate) of a thread running on a simultaneous multi-threaded microprocessor by a closed feedback loop. We showed in previous experimental studies that the proposed approach works. In this paper we discuss the control theory approach from a theoretical point of view. We develop a mathematical model of a general purpose multi-threaded microprocessor enhanced with a closed feedback controller and use control theory methods to investigate properties like stability and settling time.
ISSN:1555-0885
2375-5261
DOI:10.1109/ISORC.2008.8