Computer
The duality of memory and communication in the implementation of a multiprocessor operating system
SOSP '87 Proceedings of the eleventh ACM Symposium on Operating systems principles
The Sprite Network Operating System
Computer
Transparent process migration: design alternatives and the sprite implementation
Software—Practice & Experience
The design and implementation of a log-structured file system
SOSP '91 Proceedings of the thirteenth ACM symposium on Operating systems principles
Measurements of a distributed file system
SOSP '91 Proceedings of the thirteenth ACM symposium on Operating systems principles
Task Migration on the top of the Mach Microkernel
USENIX MACH III Symposium
Naming, state management, and user-level extensions in the sprite distributed file system
Naming, state management, and user-level extensions in the sprite distributed file system
The partial migration of game state and dynamic server selection to reduce latency
Multimedia Tools and Applications
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Sprite is a distributed operating system that supports a fast, single-image network file system and transparent process migration. Over a period of 19 months we ported Sprite to run as a server on top of the Mach 3.0 microkernel. Although the resulting server does not implement some Sprite features, it can run in an existing Sprite cluster, and it supports standard UNIX programs like vi, gcc, and make. Porting Sprite to Mach was generally straightforward, though there were some difficulties. Many of the problems were related to asynchronous interactions between the Sprite server, Mach, and Sprite user processes. Others resulted from trying to maintain native Sprite's internal interfaces in the Sprite server. The Sprite server is 22% smaller than an equivalent Sprite kernel, and it contains almost no machine-dependent code. These improvements should significantly simplify porting Sprite to new hardware platforms. Unfortunately, the Sprite server runs the Andrew benchmark at only 38% of the speed of native Sprite. None of the performance problems appears insurmountable, but they could require a long time to track down and fix.