Efficient Lock Algorithm for Shared Objects in SMP Environments

DOI
  • Ogasawara Takeshi
    IBM Tokyo Research Laboratory Applied Computer Science Course, Interfaculty Initiative in Information Studies, Graduate School of Interdisciplinary Information Studies, The University of Tokyo
  • Komatsu Hideaki
    IBM Tokyo Research Laboratory
  • Nakatani Toshio
    IBM Tokyo Research Laboratory

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Description

We propose a new algorithm that is effective for objects that are shared among threads but are not contended for in SMP environments. We can remove the overhead of the serialization between lock and other non-lock operations and avoid the latency of complex atomic operations in most cases. We established the safety of the algorithm by using a software tool called Spin. The experimental results from our benchmarking on an SMP machine using Intel Xeon processors revealed that our algorithm could significantly improve efficiency by 80% on average compared to using complex atomic instruction.

Journal

Details 詳細情報について

  • CRID
    1390001205264128512
  • NII Article ID
    130000058322
  • DOI
    10.11185/imt.2.154
  • ISSN
    18810896
  • Text Lang
    en
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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