A Time Complexity Bound for Adaptive Mutual Exclusion

  title={A Time Complexity Bound for Adaptive Mutual Exclusion},
  author={Yong-Jik Kim and James H. Anderson},
We consider the time complexity of adaptive mutual exclusion algorithms, where \time" is measured by counting the number of remote memory references required per critical-section access. We establish a lower bound that precludes a deterministic algorithm with O(log k) time complexity (in fact, any deterministic o(k) algorithm), where k is \point contention." In contrast, we show that expected O(log k) time is possible using randomization. 
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