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Operating Systems: Concurrent and Distributed Software Design
book

Operating Systems: Concurrent and Distributed Software Design

by Jean Bacon, Tim Harris
March 2003
Intermediate to advanced content levelIntermediate to advanced
912 pages
27h 17m
English
Pearson Business
Content preview from Operating Systems: Concurrent and Distributed Software Design

26.4. Downloadable code

In Section 26.3 we examined microkernels and the Mach system in particular. These systems provided OS functions from a number of communicating user-mode server processes. Microkernels enable a great deal of flexibility in the policies implemented by components of the system and, if designed carefully, allow components to fail and be restarted without interrupting the system as a whole. However, it is interesting to examine the trade-offs that exist between this level of flexibility and the costs of the IPC mechanisms that are required to support it. An alternative mechanism for extensibility, downloadable code, takes a very different approach to integrating new functionality with the running OS kernel by allowing sections ...

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Publisher Resources

ISBN: 0321117891Purchase book