Java Collections Framework represents one of the key building blocks of any Java application. Although the standard JDK devoted a lot of attention to developing a coherent and easy to use collections framework one important aspect remains overlooked – collection element eviction. Collection memory footprint can not grow indefinitely because we would eventually run out of memory; we either have to remove elements from a collection or somehow periodically evict certain elements according to a chosen eviction algorithm. Since day one eviction has been a key feature of Infinispan, and in the latest 4.1 release thanks to event update batching, Infinispan has reduced the eviction overhead to such an extent that it hardly affects application performance. On top of that, Infinispan implements LIRS, a more precise eviction algorithm compared to the traditional LRU, making it the first open source project to implement this revolutionary algorithm in the data grid space. In this session, Galder and Vladimir will present to the details behind these changes, performance measurements and third-party use case testimonies.
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