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Chapter 15. Set Up Lock Striping

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15.1. About Lock Striping

Lock Striping allocates locks from a shared collection of (fixed size) locks in the cache. Lock allocation is based on the hash code for each entry's key. Lock Striping provides a highly scalable locking mechanism with fixed overhead. However, this comes at a cost of potentially unrelated entries being blocked by the same lock.
Lock Striping is disabled by default in Red Hat JBoss Data Grid. If lock striping remains disabled, a new lock is created for each entry. This alternative approach can provide greater concurrent throughput, but also results in additional memory usage, garbage collection churn, and other disadvantages.
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