Simple, Fast, and Practical Non-Blocking and Blocking Concurrent Queue Algorithms

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Simple, Fast, and Practical Non-Blocking and Blocking Concurrent Queue Algorithms (1996)

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by Maged M. Michael , Michael L. Scott

Venue:	Proc. 15th ACM Symp. on Principles of Distributed Computing
Citations:	12 - 0 self

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@INPROCEEDINGS{Michael96simple,fast,,
    author = {Maged M. Michael and Michael L. Scott},
    title = {Simple, Fast, and Practical Non-Blocking and Blocking Concurrent Queue Algorithms},
    booktitle = {Proc. 15th ACM Symp. on Principles of Distributed Computing},
    year = {1996},
    pages = {267--275}
}

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Abstract

Drawing ideas from previous authors, we present a new non-blocking concurrent queue algorithm and a new twolock queue algorithm in which one enqueue and one dequeue can proceed concurrently. Both algorithms are simple, fast, and practical; we were surprised not to find them in the literature. Experiments on a 12-node SGI Challenge multiprocessor indicate that the new non-blocking queue consistently outperforms the best known alternatives; it is the clear algorithm of choice for machines that provide a universal atomic primitive (e.g. compare and swap or load linked/store conditional). The two-lock concurrent queue outperforms a single lock when several processes are competing simultaneously for access; it appears to be the algorithm of choice for busy queues on machines with non-universal atomic primitives (e.g. test and set). Since much of the motivation for non-blocking algorithms is rooted in their immunity to large, unpredictable delays in process execution,we report experimental ...

Keyphrases

practical non-blocking blocking concurrent queue algorithm new non-blocking concurrent queue algorithm single lock clear algorithm new twolock queue algorithm unpredictable delay non-blocking algorithm non-universal atomic primitive two-lock concurrent queue process execution 12-node sgi challenge multiprocessor indicate universal atomic primitive busy queue known alternative several process new non-blocking queue previous author

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