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4年前
线上机器内存持续一周保持在90%（8G机器），分析堆dump文件，只用了2.6G，怀疑是堆外内存问题，求助！
OC: 5666048.0
OU: 937339.0
MC: 117424.0
MU: 107207.2
Heap Configuration:
MinHeapFreeRatio = 40
MaxHeapFreeRatio = 70
MaxHeapSize = 6150946816 (5866.0MB)
NewSize = 348913664 (332.75MB)
MaxNewSize = 348913664 (332.75MB)
OldSize = 5802033152 (5533.25MB)
NewRatio = 2
SurvivorRatio = 8
MetaspaceSize = 21807104 (20.796875MB)
CompressedClassSpaceSize = 1073741824 (1024.0MB)
MaxMetaspaceSize = 17592186044415 MB
G1HeapRegionSize = 0 (0.0MB)
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