The process by which a page is selected to swap to storage is called a page-replacement algorithm and can be implemented using a number of algorithms (such as least recently used).
选择一个页面来交换存储的过程被称为一个页面置换算法，可以通过使用许多算法(至少是最近使用的)来实现。
The VMM has a page-replacement algorithm, which assigns the page frames and determines exactly which virtual-memory pages currently in RAM will have their page frames brought back to the free list.
VMM 提供了一种页面置换算法，该算法用于分配页帧，以及确定应该将当前RAM 中的哪些虚拟内存页面的页帧置换回空闲列表。
Further, the guest operating system has the most information about the workload's memory use and should be able to make the best page replacement decisions.
更进一步，客户操作系统具有最多的关于工作负载的内存使用的信息，应该能做出最好的页面替换决策。
You can use system tunable parameters to control the behavior of the AIX page replacement daemons and control how AIX treats different classes of pages page replacement.
您可以使用各种系统可调参数来控制AIX分页替换守护进程的行为，并控制AIX处理不同类型分页的分页替换的方式。
Because the page replacement algorithm is always looking for free frames while it is doing its scanning on systems with a lot of memory, the number of frames to scan can be significant.
在对有大量内存的系统进行扫描时，因为页面置换算法始终寻找空闲帧，所以需要扫描的页帧数量非常大。
The AIX page replacement daemons scan memory a page at a time to find pages to evict in order to free up memory.
AIX分页替换守护进程一次扫描内存的一个分页，找出要回收的分页以释放内存。
This process is otherwise known as page replacement.
这个过程也称为分页替换。
The virtual memory pages whose page frames are to be reassigned are selected using the VMM's page replacement algorithm.
可以使用VMM的页面置换算法来选择要重新分配页帧的虚拟内存页面。
VMM is constantly lurking and working in the background trying to steal frames that have not been recently referenced, using the page replacement algorithm discussed earlier.
VMM一直在后台运行，尝试使用前面介绍的页面置换算法偷取最近没有引用过的页帧。
If the page is modified, the page replacement daemon writes the page out to a secondary storage location (for example, paging space or file system disk).
如果该分页经过了修改，那么分页替换守护进程将该分页写入到辅助存储位置(例如，分页空间或者文件系统磁盘)。
The two most basic page replacement tunable parameters are minperm and maxperm.
minperm和maxperm是两个最基本的分页替换可调参数。
In order to help optimize which pages are selected for replacement by the page replacement daemons, AIX classifies pages into one of two types.
为了帮助分页替换守护进程更好地选择用来进行替换的分页，AIX将分页分为下面两种类型。
The way it worked in the past was actually quite simple: If your file pages (numperm%) were greater than the actual maxperm%, then the page replacement would only steal file pages.
以前，它的工作方式非常简单：如果您的文件页面 (numperm%)大于maxperm%，那么页面置换算法将仅替换文件页面。
A page replacement daemon is referred to as lrud (shows up as lrud in the output of ps -k).
其中一个分页替换守护进程称为lrud（显示为ps-k的输出中的 lrud）。
If the page is unmodified, the page replacement daemon can simply mark the physical memory block as free, and the physical memory block can then be re-used for another page.
如果该分页没有经过修改，那么分页替换守护进程可以简单地将物理内存块标记为空闲，这样一来，就可以将该物理内存块重用于另一个分页。
The AIX VMM has background daemons responsible for doing page replacement.
AIXVMM提供了一些后台守护进程，专门负责进行分页替换。
In this client-only mode, the AIX page replacement daemons strictly target client pages.
在这种仅客户端的模式中，AIX分页替换守护进程将严格地选择客户端分页进行操作。
Since the code page 1252 contains only a subset of all Unicode characters, those Unicode characters that have no equivalent in code page 1252 are replaced by a so-called replacement character.
因为编码页1252只包含所有unicode字符的一个子集，在编码页1252中没有对应编码的那些Unicode字符由一个所谓的替换字符来替代。
When numclient reaches the maxclient limit, the AIX kernel starts page replacement in a special, client-only mode.
当numclient 达到maxclient限制时，AIX内核将采用特殊的、仅客户端的模式开始分页替换。
A complete list of replacement components can be found on the preceding page.
在前一页可以找到更换部件的全套清单。
Improving virtual memory page replacement can reduce page fault rate, and therefore improve the performance of the system.
改进页面置换算法，可以降低页面失败率，从而有效地提高系统性能。
But in some cases, LRU algorithm causes many page faults, so improving LRU page replacement algorithm can reduce page faults, and therefore improve the performance of the system.
但LRU算法在某些情况下会产生较多的缺页失败，改进LRU算法，降低缺页失败次数，可以有效地提高系统性能。
This is the page replacement algorithm to solve the problem.
这就是页面替换算法要解决的问题。
This home page and the pages it links should be viewed as a resource; they are not intended as a replacement or substitution for the Exchange Visitor Program regulations,.
本主页极其相关链接可被视为一种资源，但是不能替代交流访问者项目的规定。
This home page and the pages it links should be viewed as a resource; they are not intended as a replacement or substitution for the Exchange Visitor Program regulations,.
本主页极其相关链接可被视为一种资源，但是不能替代交流访问者项目的规定。
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