DocumentCode :
2129993
Title :
The relative importance of concurrent writers and weak consistency models
Author :
Keleher, Peter J.
Author_Institution :
Dept. of Comput. Sci., Maryland Univ., College Park, MD, USA
fYear :
1996
fDate :
27-30 May 1996
Firstpage :
91
Lastpage :
98
Abstract :
This paper presents a detailed comparison of the relative importance of allowing concurrent writers versus the choice of the underlying consistency model. Our comparison is based on single- and multiple-writer versions of a lazy release consistent (LRC) protocol, and a single-writer sequentially consistent protocol, all implemented in the CVM software distributed shared memory system. We find that in our environment, which we believe to be representative of distributed systems today and in the near future, the consistency model has a much higher impact on overall performance than the choice of whether to allow concurrent writers. The multiple writer LRC protocol performs an average of 9% better than the single writer LRC protocol, but 34% better than the single-writer sequentially consistent protocol. Set against this, MW-LRC required an average of 72% memory overhead, compared to 10% overhead for the single-writer protocoIs
Keywords :
distributed memory systems; memory protocols; paged storage; shared memory systems; LRC; concurrent writers; distributed shared memory; lazy release consistent; protocol; weak consistency models; Access protocols; Computer science; Educational institutions; Hardware;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Distributed Computing Systems, 1996., Proceedings of the 16th International Conference on
Print_ISBN :
0-8186-7399-0
Type :
conf
DOI :
10.1109/ICDCS.1996.507905
Filename :
507905
Link To Document :
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