Discrete Frequency Selection of Frame-Based Stochastic Real-Time Tasks
Abstract
Energy-efficient real-time task scheduling has been actively explored in the past decade. Different from the past work, this paper considers schedulability conditions for stochastic real-time tasks. A schedulability condition is first presented for frame-based stochastic real-time tasks, and several algorithms are also examined to check the schedulability of a given strategy. An approach is then proposed based on the schedulability condition to adapt a continuous-speed-based method to a discrete-speed system. The approach is able to stay as close as possible to the continuous-speed-based method, but still guaranteeing the schedulability. It is shown by simulations that the energy saving can be more than 20% for some system configurations
Cite
@article{arxiv.0803.4308,
title = {Discrete Frequency Selection of Frame-Based Stochastic Real-Time Tasks},
author = {Vandy Berten and Chi-Ju Chang and Tei-Wei Kuo},
journal= {arXiv preprint arXiv:0803.4308},
year = {2008}
}
Comments
10 pages