Protection and the control of information sharing in multics
Communications of the ACM
Communications of the ACM
The Multics virtual memory: concepts and design
Communications of the ACM
Design considerations for the VLSI processor of X-TREE
ISCA '79 Proceedings of the 6th annual symposium on Computer architecture
Communication In X-TREE, A Modular Multiprocessor System
ACM '78 Proceedings of the 1978 annual conference
Protection in the Hydra Operating System
SOSP '75 Proceedings of the fifth ACM symposium on Operating systems principles
The Cambridge CAP computer and its protection system
SOSP '77 Proceedings of the sixth ACM symposium on Operating systems principles
SOSP '77 Proceedings of the sixth ACM symposium on Operating systems principles
A survey of process migration mechanisms
ACM SIGOPS Operating Systems Review
ACM Computing Surveys (CSUR)
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This paper describes the fundamentals of the X-TREE Operating System (XOS), a system developed to investigate the effects of the X-TREE architecture on operating system design. It outlines the goals and constraints of the project and describes the major features and modules of XOS. Two concepts are of special interest: The first is demand paging across the network of nodes and the second is separation of the global object space and the directory structure used to reference it. Weaknesses in the model are discussed along with directions for future research.