advancedJVM Internals & Memory385 of 436
What does jcmd VM.native_memory reveal that a heap dump cannot?
A heap dump only shows Java heap contents. `jcmd <pid> VM.native_memory summary` (with -XX:NativeMemoryTracking=summary enabled) shows the FULL JVM memory picture — heap, Metaspace, thread stacks, Code Cache, and GC structures — useful when a process uses far more OS memory than -Xmx suggests.
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