To appear at (HIPS'01), San Francisco, California, USA, April 23, 2001
Abstract
The Java platform has many characteristics which make it very
desirable for integrated continuous media processing. Unfortunately, it
lacks the necessary CPU resource management facility to support Quality
of Service guarantees for soft real-time multimedia tasks. In this
paper, we present our new Java Virtual Machine, Q-JVM, which brings CPU
resource management to the Java platform. Q-JVM is based on Sun<92>s
reference implementation. It incorporates an enhanced version of the
abstract MTR-LS algorithm in its thread scheduler. Combined with an optional
admission control mechanism, this algorithm is able to support QoS
parameters such as fairness, bandwidth partitioning and delay bound
guarantees, as well as the cumulative service guarantee. Our
experimental results show that Q-JVM is backward compatible with the
standard version from Sun, has low scheduling overhead, and is able to
provide QoS guarantees as specified.
