DoubleAdder
Explore the usage of DoubleAdder in Java concurrency to efficiently manage double values updated by multiple threads. Understand how it spreads contention among variables to enhance throughput compared to atomic counters, and when it is suitable for applications such as summary statistics with frequent writes and infrequent reads.
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Overview
The DoubleAdder class offers an alternative mechanism to using atomic classes or lock-based counters in situations where a variable is repeatedly updated to compute stats or summary counts. In such scenarios throughput suffers significantly when several threads attempt to update a single variable. In case of locks, threads get suspended and resumed while in case of atomic ...