page virtual memory的意思|示意

In the Linux memory manager, page tables keep track of the physical pages of memory that are used by a process, and they map the virtual pages to the physical pages.

在Linux内存管理器中，页表保持对进程使用的内存物理页的追踪，它们将虚拟页映射到物理页。

A DSI occurs whenever a reference is made to a virtual address that is not currently loaded in physical memory (this is a page fault).

如果对当前不在物理内存中加载的虚拟地址进行引用(这是一个页面错误)，则会出现DSI错误。

This paging algorithm determines which virtual memory pages currently in ram ultimately have their page frames brought back to the free list.

这种分页算法可以确定对当前位于RAM中的哪些虚拟内存页面的页帧进行回收，并放回到空闲列表中。

From here, you can determine that its objectives are to help minimize both the response time of page faults and to decrease the use of virtual memory where it can.

由此可以看出，它的目标是帮助最大限度地缩短缺页响应时间，并在可能的情况下减少虚拟内存的使用。

The mapping of virtual memory to physical memory occurs through page tables, which are implemented in the underlying hardware (see Figure 1).

虚拟内存到物理内存的映射通过页表完成，这是在底层软件中实现的(见图1)。

These virtual addresses are mapped to physical memory by page tables, which are maintained by the operating system kernel and consulted by the processor.

这些虚拟地址映射到物理内存页表，这是维护操作系统的内核和处理器咨询。