Locks with ordered sharing
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In databases and transaction processing Locks with ordered sharing comprises enhancements of the Two phase locking (2PL) concurrency control protocol by changing the locking semantics upon conflicts. In many situation such changes provide performance improvements over 2PL.
References
- D. Agrawal, A. El Abbadi, A. E. Lang: The Performance of Protocols Based on Locks with Ordered Sharing, IEEE Transactions on Knowledge and Data Engineering, Volume 6 , Issue 5, October 1994, PP. 805 - 818, ISSN:1041-4347