当我运行时free -h
,我得到:
total used free shared buffers cached
Mem: 251G 208G 43G 179G 144M 190G
-/+ buffers/cache: 17G 233G
Swap: 5.6G 5.6G 1.1M
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共享内存(179G)+缓存内存(190G)如何超过总内存(251G)?内存可以算作缓存内存和共享内存吗?