If the number of free pages in the system falls below this limit the kernel will start swapping more aggressively to free memory and maintain system performance .

如果系统中可用页面的数目低于这一限制，则内核将以较积极的方式启动 交换，以释放 内存，从而维持系统性能。

If you try to tune a server when there is no free CPU or where the operating system is swapping virtual memory you won 't get very far .

如果您在没有空闲CPU时或者在操作系统 需要 交换虚拟 内存的地方试图优化服务器，则无法使其变得很快。

The effective management for a resident data area a transient area and a free area in main memory reduces the table swapping between the main memory and the disk .

通过对 内存常驻数据区、临时数据区和空白区的有效管理，从而减少了 常用表的 内外 存 频繁 切换，提高了 效率。

This process is called swapping because the pages are swapped from memory onto the hard disk .

这个过程称为 交换，因为页面会被从 内存交换到硬盘上。

The data swapping strategy and its evaluation in real time main memory database system

实时 内存数据库的数据 交换策略及评价

To avoid host swapping each guest 's memory balloon is dynamically adjusted in accordance with host and guest memory pressure .

为了避免主机 交换，每个客户的 内存膨胀都根据主机和客户内存压力动态调整。

This strategy can be applied to any other systems based on social networks and main memory databases . Secondly a swapping strategy based on Markov process for main memory database is proposed .

这个策略也可以被用到基于社会网络和内存数据库的其他系统中。接下来，本文提出了一个基于马尔科夫过程的 内存数据库 交换策略。

Speed Information Swapping & Select Engine ( SISE ) technology is introduced to Middle Business System which improves the system efficiently by building database in memory .

中间业务系统采用 内存引擎技术， 将数据库建在 内存中，以提高系统运行效率。

Our memory ballooning strategy is designed to prevent host swapping instead directing memory pressure onto the guests .

我们的内存膨胀策略的思路是防止主机 交换，把 内存压力转移到其他客户上。

Soon after that the kernel starts swapping some of those pages to disk in anticipation of having to allocate memory to the process that 's allocating memory .

在此之后，如果内核预计必须为请求 内存的进程分配内存，它就会开始 把一些页面 交换到磁盘。

This is generally done by swapping units of address space back and forth as needed between a storage device and memory .

通常，这是通过来回在存储设备与 内存之间 交换地址空间的单元而实现的。

This paper discusses the strategy and realization of the data swapping based on the ART - ⅱ( an Active real-time main memory database ) which is developed by ourselves .

该文针对一个自主开发的主动实时 内存数据库系统（ART-Ⅱ），介绍了其 内外 存数据 交换的策略及实现。