The release of the virtual memory is usually accompanied by the shutdown of the application. you can use the command to refresh the swap and restore it to the initial state: swapoff-aswapon-a for example: [root @ wjlcn1026vm] # The release of free-mto virtual memory is usually accompanied by the shutdown of the application. you can use the command to refresh swap to restore to the initial state: swapoff-aswapon-a for example: [root @ wjlcn1026 vm] # free-m total used free shared buffers cachedMem: 1744 913 830 0 0 491-/+ buffers/cache: 422 1321 Swap: 2015 1097 918 [root @ wjlcn1026 vm] # swapoff-a [root @ wjlcn1026 vm] # free-m total used free shared buffers cachedMem: 1744 1109 634 0 5 694-/+ buffers/cache: 410 1333 Swap: 0 0 0 [root @ wjlcn1026 vm] # swapon-a [root @ wjlcn1026 vm] # free-m total used free shared buffers cachedMem: 1744 1116 627 0 5 694-/+ buffers/cache: 417 1326 Swap: 2015 0 2015
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