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 vmstat tool outputs thread/process information, memory/swap usage, page ins/outs, disk I/O, page faults, and CPU statistics.
vmstat 工具输出线程/进程信息、内存/交换区使用率、换进/换出页面、磁盘 I/O、页面错误和 CPU 统计信息。
When a process page faults on a file (meaning the process references a part of the file that is not currently cached in memory in a permanent storage page), the process generates a page fault.
当对某个文件出现进程缺页(意味着该进程引用了文件的部分内容，而这部分内容当前没有缓存在永久存储分页的内存中)的时候，该进程将产生一个缺页。
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