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Java: ChronicleMap, Part 1: Go Off-Heap

 5 years ago
source link: https://www.tuicool.com/articles/IZbAfqa
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Filling up a HashMap with millions of objects will quickly lead to problems such as inefficient memory usage, low performance, and garbage collection issues. Learn how to use off-heap CronicleMap that can contain billions of objects with little or no heap impact.

The built-in Map implementations, such as HashMap and ConcurrentHashMap, are excellent tools when we want to work with small to medium-sized data sets. However, as the amount of data grows, these Map implementations are deteriorating and start to exhibit a number of unpleasant drawbacks as shown in this first article in an article series about open-sourced ChronicleMap.

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