Patent
1995-06-07
1998-10-27
Banankhah, Majid A.
395670, G06F 900
Patent
active
058288783
ABSTRACT:
A scheduler for controlling when N entities, where N is an integer greater than or equal to one, are operated upon by a server. The scheduler includes a starting time memory. The starting time memory has only arriving times which are greater than virtual time. The scheduler also includes a finishing time memory. The finishing time memory has finishing times of the N entities whose starting times are less than or equal to virtual time. Additionally, the scheduler includes a virtual clock that keeps track of virtual time so the arriving times and finishing times can be identified. Moreover, the scheduler is also comprised of a controller for choosing entities to be operated upon by the server from the finishing time memory. A method of scheduling when a server provides service to entities.
REFERENCES:
patent: 5142533 (1992-08-01), Crisler et al.
"Comparison of Rate-Based Service Disciplines", Hui Zhang and Srinivasan Keshav, SIGCOMM '91 Conference Communications, Architectures and Protocols, Zurich, Switzerland, 3-6 Sep. 1991, vol. 21, No. 4 ISSN 0146-4833, Computer Communication Review, Sep. 1991, USA, pp. 113-121, XP000260077.
"Virtual clocks and leaky buckets: flow control protocols for high-speed networks", Weinrib, A. et al, Protocols for High-Speed Networks, II. Proceedings of the IFIP WG 6.1/WG 6.4 Second International Workshop, Palo Alto, CA, USA, 27-29 Nov. 1990, ISBN 0-444-88932-9, 1991, Amsterdam, Netherlands, North-Holland, Netherlands, pp. 3-15, XP002049062.
"Dynamic Scheduling of Hard Real-Time Task and Real-Time Threads" by Karsten Schwon and Honguji Zhoo II Parallel Distributed Processing 1990.
Banankhah Majid A.
FORE Systems, Inc.
Schwartz Ansel M.
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