“Last-drop throughput improvements. Even for non-allocating workloads, the choice of GC means choosing the set of GC barriers that the workload has to use, even

“Last-drop throughput improvements. Even for non-allocating workloads, the choice of GC means choosing the set of GC barriers that the workload has to use, even if no GC cycle actually happens. All OpenJDK GCs are generational (with the notable exceptions of non-mainline Shenandoah and ZGC), and they emit at least one reference write barrier. Avoiding this barrier can bring the last bit of throughput improvement. There are locality caveats to this, see below.” From: https://openjdk.java.net/jeps/318 https://openjdk.java.net/jeps/318