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Adaptive reader-writer lock

  • US 7,747,805 B2
  • Filed: 05/06/2008
  • Issued: 06/29/2010
  • Est. Priority Date: 12/19/2000
  • Status: Expired due to Fees
First Claim
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1. A computer system comprising:

  • multiple processors;

    a counter for measuring read-side acquisitions by a unit within a computer processing system;

    first and second system-wide measures of read and write acquisitions of said processors; and

    a manager adapted to switch from a first synchronization mechanism to a second synchronization mechanism responsive to at least one of said measures, wherein said synchronization mechanisms are selected from the group consisting of;

    a distributed reader-writer lock, a centralized reader-writer lock, an exclusive lock mode, and RCU.

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