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Unifying Synchronization and Events in a Multicore OS

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Executive Summary

In this paper, the authors argue that an operating system structured as a distributed system needs a coordination and a name service to make OS services work correctly. While a distributed structure allows applying algorithms from the distributed field, it also suffers from similar problems like synchronization, naming, distributed locking and coordination of service instances. Octopus, their solution to this problem in the context of a real OS, provides an easy-to-use, high-level, uniform coordination service with events at reasonable performance. Based on this service, they describe three real use cases: device management, OS service registry and boot-up coordination.

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