15.4. Eviction Strategies

Each eviction strategy has specific benefits and use cases, as outlined below:

Table 15.1. Eviction Strategies
Strategy Name	Operations	Use Cases
`EvictionStrategy.NONE`	No eviction occurs.	-
`EvictionStrategy.LRU`	Least Recently Used eviction strategy. This strategy evicts entries that have not been used for the longest period. This ensures that entries that are reused periodically remain in memory.	LRU is JBoss Data Grid's default eviction algorithm because it suits a large variety of production use cases.
`EvictionStrategy.UNORDERED`	Unordered eviction strategy. This strategy evicts entries without any ordered algorithm and may therefore evict entries that are required later. However, this entry saves resources because no algorithm related calculations are required before eviction.	This strategy is recommended for testing purposes and not for a real work implementation.
`EvictionStrategy.LIRS`	Low Inter-reference Recency Set eviction strategy.	-