switching to PRIMARY_SYNC configuration, PUT benchmarks dropped to 35K
I dont think its a memory issue, because heap is configured to 10GB and
entries are stored off-heap with Non-Heap memory set to unlimited. The
server has 28GB and plenty of available memory.

Follows are the JVM Options:
-server -Xms10g -Xmx10g -XX:NewSize=512m -XX:SurvivorRatio=6
-XX:+AlwaysPreTouch -XX:+UseG1GC -XX:MaxGCPauseMillis=2000 -XX:GCTimeRatio=4
-XX:InitiatingHeapOccupancyPercent=30 -XX:G1HeapRegionSize=8M
-XX:ConcGCThreads=8 -XX:G1HeapWastePercent=10 -XX:+UseTLAB
-XX:+ScavengeBeforeFullGC -XX:+DisableExplicitGC

OS is Windows

It is noticed that CPU does not go above 10% on both servers in both GET and
PUT tests.

Any recommendations to tune things further?


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