Apache Cassandra Benchmarking: 4.0 Brings the Heat with New Garbage Collectors ZGC and Shenandoah

The recent release of Apache Cassandra 4.0 brings significant performance improvements, particularly when combined with new garbage collectors such as ZGC and Shenandoah. Benchmarks show that Cassandra 4.0 outperforms its predecessor, Cassandra 3.11.6, in both throughput and latency. Shenandoah, a low-latency garbage collector developed by RedHat, delivers impressive results under moderate load but may struggle with spiky loads. ZGC also shows promise, particularly when combined with JDK 14, although it currently lags behind Shenandoah in terms of throughput and latency. Overall, the combination of Apache Cassandra 4.0 and these new garbage collectors offers a promising future for latency-sensitive use cases.

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