Continuous Media Filesystem Services on a Real-Time JAVA Server
نویسندگان
چکیده
In this paper we investigate filesystem support for continuous media on the Java language. We describe a prototype implementation on a Real-Time Java Server developed as an application-level server on the Real-Time Mach microkernel environment. Java virtual machine has been extended to support filesystem bandwidth reservation facilities existing on Real-Time Mach. Such facilities allow continuous media applications to specify their disk bandwidth usage requirements by creating a disk bandwidth reservation. The operating system, upon acceptance of the requests, internally enforces and guarantees such a share of the disk bandwidth for every active reservation. We present a performance evaluation including both a synthetic application and real multimedia application based on a QuickTime video player which make use of real-time Java threads and filesystem bandwidth reservation facilities. Our experiments conclude that the proposed filesystem extensions to the Java language are suitable to continuous media applications requirements.
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