Optimistic concurrency control: Difference between revisions

Revision as of 07:05, 30 September 2008

Revision as of 04:38, 17 November 2008

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Optimistic concurrency is generally used in environments with a low contention for data. When conflicts are rare, validation can be done efficiently, leading to higher throughput than other concurrency control methods.{{Fact|date=February 2007}} However, if conflicts happen often, the cost of repeatedly restarting transactions, hurts performance significantly &mdash; other [[non-lock concurrency control]] methods have better performance when there areunder manythese conflictsconditions.

==Web usage==