intermediateJVM Internals & Memory

What are the most important JVM flags you should know for production tuning?

-Xms/-Xmx (heap sizing), -XX:ReservedCodeCacheSize, -XX:+UseG1GC + -XX:MaxGCPauseMillis, -XX:+HeapDumpOnOutOfMemoryError, -XX:StringTableSize, -XX:NewRatio, -XX:SurvivorRatio, -XX:MaxTenuringThreshold — each controls a distinct part of JVM behavior worth knowing by name.

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