Distributed naming in a factored operating system
Name
711199481-MIT.pdf
Description
Full printable version
Size
6.67 MB
Format
Adobe PDF
Checksum (MD5)
4a2cb01f08d7c74a4d3cfdc66775b462
Author(s)
Beckmann, Nathan (Nathan Zachary)
Advisor(s)
Anant Agarwal.
Alternative Title
Distributed naming in a fos
Date Issued
2010
Publisher
Massachusetts Institute of Technology
Abstract
A factored operating system (fos) is a new operating system design for manycore and cloud computers. In fos, OS services are separated from application code and run on distinct cores. Furthermore, each service is split into a fleet, or parallel set of cooperating processes that communicate using messages. Applications discover OS services through a distributed, dynamic name service. Each core runs a thin microkernel, and applications link in a user-space library called libfos that translates service requests into messages. The name service facilitates message delivery by looking up service locations and load balancing within service fleets. libfos caches service locations in a private cache to accelerate message delivery, and invalid entries are detected and invalidated by the microkernel. As messaging is the primary communication medium in fos, the name service plays a foundational role in the system. It enables key concepts of fos's design, such as fleets, communication locality, elasticity, and spatial scheduling. It is also one of the first complex services implemented in fos, and its implementation provides insight into issues one encounters while developing a distributed fos service. This thesis describes the design and implementation of the naming system in fos, including the naming and messaging system within each application and the distributed name service itself. Scaling numbers for the name service are presented for various workloads, as well as end-to-end performance numbers for two benchmarks. These numbers indicate good scaling of the name service with expected usage patterns, and superior messaging performance of the new naming system when compared with its prior implementation. The thesis concludes with research directions for future work.
Description
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2010.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 87-89).
Subjects
Electrical Engineering and Computer Science.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
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