A feedback-driven proportion allocator for real-rate scheduling
OSDI '99 Proceedings of the third symposium on Operating systems design and implementation
Energy minimization with guaranteed quality of service
ISLPED '00 Proceedings of the 2000 international symposium on Low power electronics and design
Resource kernels: a resource-centric approach to real-time and multimedia systems
Readings in multimedia computing and networking
Time Series Analysis, Forecasting and Control
Time Series Analysis, Forecasting and Control
QoS Negotiation in Real-Time Systems and Its Application to Automated Flight Control
RTAS '97 Proceedings of the 3rd IEEE Real-Time Technology and Applications Symposium (RTAS '97)
Adaptive Bandwidth Reservation for Multimedia Computing
RTCSA '99 Proceedings of the Sixth International Conference on Real-Time Computing Systems and Applications
A resource allocation model for QoS management
RTSS '97 Proceedings of the 18th IEEE Real-Time Systems Symposium
A Dynamic Quality of Service Middleware Agent for Mediating Application Resource Usage
RTSS '98 Proceedings of the IEEE Real-Time Systems Symposium
Analysis of a Reservation-Based Feedback Scheduler
RTSS '02 Proceedings of the 23rd IEEE Real-Time Systems Symposium
Hierarchical QoS Management for Time Sensitive Applications
RTAS '01 Proceedings of the Seventh Real-Time Technology and Applications Symposium (RTAS '01)
Convex Optimization
Adaptive reservations in a Linux environment
RTAS '04 Proceedings of the 10th IEEE Real-Time and Embedded Technology and Applications Symposium
Integrated Resource Management and Scheduling with Multi-Resource Constraints
RTSS '04 Proceedings of the 25th IEEE International Real-Time Systems Symposium
QoS Control Strategies for High-Quality Video Processing
Real-Time Systems
Principles for the Prediction of Video Decoding Times Applied to MPEG-1/2 and MPEG-4 Part 2 Video
RTSS '06 Proceedings of the 27th IEEE International Real-Time Systems Symposium
AQuoSA—adaptive quality of service architecture
Software—Practice & Experience
Flexible and adaptive QoS control for distributed real-time and embedded middleware
Proceedings of the ACM/IFIP/USENIX 2003 International Conference on Middleware
SEM'02 Proceedings of the 3rd international conference on Software engineering and middleware
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We consider the problem of power-aware Quality of Service (QoS) control for soft real-time embedded systems. Applications can have time-varying and scarcely known resource requirements, and can be activated and terminated at any time. However, they have the capability to switch among a discrete set of operation modes with different QoS levels and resource requirements. In addition, the platform provides resources with power-scaling capabilities and may be subject to power constraints. We present a QoS control architecture achieving optimum trade-offs between overall QoS and power consumption of the system, based on two nested control loops. The external one decides dynamically the optimum configuration for the system, in terms of application QoS modes and resource power modes, while the internal one modulates the resource allocations on a job by job basis, so as to respect timing constraints. We demonstrate the effectiveness of the approach by extensive simulations with trace data of real multimedia applications.