分页空间（或交换空间）是一种逻辑卷，用来存储不使用随机存取存储器（RAM）进程的临时区域。

Paging space, or swap space, is a type of logical volume that serves as a staging area for processes that are not using active random-access memory (RAM).

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在单段式虚拟存储器-请求式分页系统中，涉及到缺页中断次数的计算问题。从虚拟存储器的基本原理出发，分析了各种教材中有关计算结果不同的主要原因。

There is a problem of counting the page fault rate in the paging system. This paper analyzes the cause of the difference for the output in different textbooks.

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