swap space

基本解释

All UNIX systems usually have one allocation of primary swap space.
所有 UNIX 系统通常都有一个主交换空间分配。
Note that the extended partition is locked in this way if any of its contained logical partitions are in use, including swap space.
注意如果扩展分区其中包含的任何一个分区（包括交换空间）正在使用，那么它是以这种方式锁定的。
For performance reasons or when diagnosing a problem that you suspect might be swap space related, you often need a more interactive view of the memory and paging usage.
出于性能的考虑，或者在诊断您怀疑可能与交换空间有关的问题时，您通常需要内存和分页使用情况的更加交互式的视图。

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