因此，内存中的永久存储分页与磁盘中的文件数据完全相同。
So, the in-memory permanent storage pages are equivalent to the file data on the disk.
因此，永久存储分页就是缓存在内存中的部分文件。
So, permanent storage pages are basically just pieces of files cached in memory.
这些永久存储分页没有经过修改，这意味着并没有在内存中对这些分页进行修改。
These permanent storage pages are unmodified, meaning that the pages have not been modified in memory.
当经过修改的永久存储分页需要换出(从内存移动到磁盘)的时候，会将它写入到文件系统中。
When a modified permanent storage page needs to be paged out (moved from memory to disk), it is written to a file system.
svmon命令没有显示永久存储分页的数目，但这个数目可以由svmon的输出计算得到。
The svmon command does not display the number of permanent storage pages, but it can be calculated from the svmon output.
永久存储分页既可以是计算性的、也可以是非计算性的，这取决于您使用这些分页的方式。
Depending on how you use the permanent storage pages, the pages can be computational or non-computational.
如果关闭该文件，那么AIX内核将继续在内存中(在永久存储分页中)缓存该文件的数据。
If the file is closed, the AIX kernel continues to cache the file data in memory (in permanent storage pages).
例如，如果一个应用程序正在读取某个文件，那么该文件数据将缓存于永久存储分页的内存中。
For example, if an application is reading a file, the file data is cached in memory in permanent storage pages.
随着程序对该文件进行读写操作，AIX内核将该文件的数据作为非计算性的永久存储分页在内存中进行缓存。
As a program does reads and writes to the file, the AIX kernel caches the file's data in memory as non-computational permanent storage pages.
如前所述，可以直接释放没有经过修改的永久存储分页，无需将其写入到文件系统中，因为文件系统包含该数据的原始副本。
As mentioned earlier, an unmodified permanent storage page can just be released without being written to the file system, since the file system contains a pristine copy of the data.
如果一个文件包含某个进程的可执行文本，那么系统会将该文件视为计算性的，并且将该文件中的所有永久存储分页都标记为计算性的。
If a file contains executable text for a process, the system treats the file as computational and marks all of the permanent storage pages in the file as computational.
如果该文件不包含可执行文本，那么系统会将该文件视为非计算性的，并且将该文件中的所有永久存储分页都标记为非计算性的。
If the file does not contain executable text, the system treats the file as non-computational file and marks all of the pages in the file as non-computational.
因为所有非计算性客户端分页是非计算性永久存储分页总数的子集，所以maxclient限制必须始终小于或者等于maxperm限制。
Because all non-computational client pages are a subset of the total number of non-computational permanent storage pages, the maxclient limit must always be less than or equal to the maxperm limit.
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。
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.
如果应用程序对某个文件进行写操作(而不是读操作)，那么永久存储分页将是“经过修改的”，并且AIX必须在释放这些分页之前将其刷新到磁盘。
If the application had been doing writes to the file instead of reads, the permanent storage pages would be "modified," and AIX would have to flush the pages to disk before releasing the pages.
如果应用程序对某个文件进行写操作(而不是读操作)，那么永久存储分页将是“经过修改的”，并且AIX必须在释放这些分页之前将其刷新到磁盘。
If the application had been doing writes to the file instead of reads, the permanent storage pages would be "modified," and AIX would have to flush the pages to disk before releasing the pages.
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