Modeling and Evaluating Design Alternatives for an On-Line Instrumentation System: A Case Study
IEEE Transactions on Software Engineering
Modeling, evaluation, and testing of paradyn instrumentation system
Supercomputing '96 Proceedings of the 1996 ACM/IEEE conference on Supercomputing
Advances in real-time database systems research
ACM SIGMOD Record
An Infrastructure for Monitoring and Management in Computational Grids
LCR '00 Selected Papers from the 5th International Workshop on Languages, Compilers, and Run-Time Systems for Scalable Computers
IEEE Transactions on Software Engineering
Embedded Systems Design
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Real-time applications in dynamic systems such as multimedia systems may change their timing characteristics on the fly and may be created and terminated at any time. A priori resource allocation decisions may not hold throughout the lifetime of such applications because of changing user needs and interests. The ability to monitor and control system resources dynamically is fundamental to building flexible and dynamic multimedia systems. In this paper, we describe the mechanisms and tools we have built for monitoring and controlling operating system resource reserves in Real-Time Mach. The system supports a resource reservation abstraction called 'processor capacity reserves', and an interactive tool named 'rmon' uses these mechanisms to display the processor usage for each reserved activity in the system and to allow the user to change the processor reservation dynamically; it can also coordinate the reservation change requests with a separate quality-of-service manager which makes policy decisions regarding which requests are granted.