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What are JVM garbage collection algorithms like G1, ZGC, and Shenandoah?
Updated May 6, 2026
Short answer
Modern GC algorithms optimize pause time and throughput differently (G1, ZGC, Shenandoah).
Deep explanation
G1 divides heap into regions and prioritizes garbage collection in regions with most garbage. ZGC and Shenandoah focus on ultra-low pause times using concurrent marking and relocation.
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