System Support for Online Reconfiguration
نویسندگان
چکیده
Online reconfiguration provides a way to extend and replace active operating system components. This provides administrators, developers, applications, and the system itself with a way to update code, adapt to changing workloads, pinpoint performance problems, and perform a variety of other tasks while the system is running. With generic support for interposition and hot-swapping, a system allows active components to be wrapped with additional functionality or replaced with different implementations that have the same interfaces. This paper describes support for online reconfiguration in the K42 operating system and our initial experiences using it. It describes four base capabilities that are combined to implement generic support for interposition and hot-swapping. As examples of its utility, the paper describes some performance enhancements that have been achieved with K42’s online reconfiguration mechanisms including adaptive algorithms, common case optimizations, and workload specific specializations.
منابع مشابه
Online Voltage Stability Monitoring and Prediction by Using Support Vector Machine Considering Overcurrent Protection for Transmission Lines
In this paper, a novel method is proposed to monitor the power system voltage stability using Support Vector Machine (SVM) by implementing real-time data received from the Wide Area Measurement System (WAMS). In this study, the effects of the protection schemes on the voltage magnitude of the buses are considered while they have not been investigated in previous researches. Considering overcurr...
متن کاملA fault detection, diagnosis, and reconfiguration method via support vector machines
This paper presents a fault detection, diagnosis, and reconfiguration method based on support vector machines. This method is appropriate for certain or predetermined faults and involves a fault detection and diagnosis unit and an online controller selection type reconfiguration mechanism. In this method, when a fault is detected and diagnosed by the fault detection and diagnosis unit, a suitab...
متن کاملDynamic Reconfiguration of Object-Middleware-based Distributed Systems
Distributed systems with high availability requirements have to support some form of dynamic reconfiguration. This means that they must provide the ability to be maintained or upgraded without being taken off-line. This thesis addresses the dynamic reconfiguration of distributed applications that run on top of an object-middleware infrastructure. In this context, a system configuration is defin...
متن کاملA decision support system for integrating manufacturing and product design into the reconfiguration of the supply chain networks
Available online 23 November 2011
متن کاملRole of Electric Vehicles Parking Lots and Storage Systems on the Penetration Rate of Distributed Generation and Network Reconfiguration
Introduction of new technologies such as energy storage systems, electric vehicles, and distributed generation improved the characteristics of networks. On other hand, using these components in distribution systems improves system performances such as power losses. One of effective methods for improving system characteristics is distribution network reconfiguration. In this study, in addition t...
متن کامل