Andrew: a distributed personal computing environment
Communications of the ACM - The MIT Press scientific computation series
Using idle workstations in a shared computing environment
SOSP '87 Proceedings of the eleventh ACM Symposium on Operating systems principles
An overview of the Andrew message system
SIGCOMM '87 Proceedings of the ACM workshop on Frontiers in computer communications technology
The ITC distributed file system: principles and design
Proceedings of the tenth ACM symposium on Operating systems principles
Network locality at the scale of processes
SIGCOMM '91 Proceedings of the conference on Communications architecture & protocols
Network locality at the scale of processes
ACM Transactions on Computer Systems (TOCS)
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In this paper we introduce the concepts of Logical and Physical Network Locality and point out their importance to the performance of distributed systems. We then describe the design of IPwatch, a simple and inexpensive tool for monitoring logical network locality. IPwatch exploits short-term locality to enable monitoring of medium- and long-term locality of large networks using modest computational resources. We describe experiments at Carnegie Mellon University to validate our ideas and to calibrate IPwatch. The results confirm the existence of substantial short-term locality in this environment. Less than 5 percent of the possible host pairs account for 75 percent of the traffic, and less than 15 percent of them account for 90 percent. Comparative measurements on another network in our environment show even stronger short-term locality.