物理内存

c–空闲物理内存量

C – amount of free physical memory

Web服务器的基本操作系统将在物理内存中缓存最近从磁盘读取的文件。

A web server 's underlying operating system will cache files that were recently read from disk in physical memory .

访问物理内存的WINDOWSnt设备驱动程序设计

Design a kernel-Mode Drive for Accessing Physical Memory in Windows NT

从物理内存管理和虚拟内存管理两个方面来分析linux内存管理。

Linux memory management is analyzed in the phase of physical memory management and virtual memory management .

其中的pin列报告了物理内存（RAM）中固定的页面数。

Pin reports back the number of pages pinned in physical memory ( RAM ) .

如果代码不恰当地使用HTTP会话，则会导致对应用程序和物理内存的不适当的消耗。

If code uses HTTP sessions poorly , that leads to inappropriate consumption of application and physical memory .

最大化系统内存能够增加Java堆的大小，同时仍然确保它小于物理内存。

Maximizing system memory enables you to increase the size of the Java heap while still guaranteeing that it will remain in physical memory .

RSS是驻留集合大小，即进程所使用的非交换区的物理内存。

RSS is Resident Set Size , the non-swapped physical memory used by process .

分配给WPAR的内存（物理内存）和CPU资源量。

The amount of memory ( physical memory ) and CPU resources allocated to a WPAR .

我将介绍AIX如何使用虚拟内存来寻址比系统中物理内存更大的内存。

I discuss how AIX uses virtual memory to address more memory than is physically on your system .

与其他风格的UNIX一样，AIX也使用虚拟内存结构帮助补充物理内存。

Just like with other forms of UNIX , AIX employs virtual memory structures to help complement physical memory .

Win32下物理内存分配和直接访问的实现

Implementation for Physical Memory Allocation Direct Access in Win32

最大堆大小应当始终小于物理内存&当堆开始换入磁盘后，Java性能将迅速降低。

The maximum heap size should always be small enough so that it remains in physical memory & Java performance degrades quickly when the heap begins swapping to disk .

ActiveMemoryExpansion（AME）这种特性可帮助提高系统的有效内存大小，而且不必增加物理内存大小。

Active Memory Expansion ( AME ) is a feature which helps to increase the effective memory size of a system without increasing the physical memory size .

可以使用vmo命令的lgpgregions和lgpgsize选项配置大页面物理内存池的大小。

The vmo command can be used to configure the size of the large page physical memory pool using the lgpg_regions and lgpg_size options .

如果多个Java运行时在一台机器上同时运行，则物理内存必须满足所有Java堆的需要。

If multiple Java runtimes are in use on a single machine at the same time , the physical memory must be sufficient to fit all of the Java heaps .

当多个JVM在同一台机器上运行时，这将减少存储类数据所需的物理内存量。

This reduces the amount of physical memory required to store class data when multiple JVMs run on the same machine .

RTSJ规范还允许开发者做一些在标准版Java中不可能办到的事：直接访问物理内存。

The RTSJ specification also allows developers to do something that is impossible in standard Java : access physical memory directly .

它的主要目标是在物理内存不足的情况下，提高内存密集型应用或IO密集型应用的系统性能。

It can improve the performance of memory intensive or IO intensive applications when lack of physical memory .

运行数据库管理系统的机器需要许多带有大型缓存的高速CPU、大量物理内存、以及良好的I/O性能。

The machine running the database management system requires many fast CPUs with large caches , lots of physical memory , and good I / O performance .

当应用程序准备运行时，windows管理系统将在磁盘上的物理内存（RAM）和虚拟内存之间分配应用程序拥有的数据。

When the application is running the windows management system will distribute the data held by the application between physical memory ( RAM ) and virtual memory on disk .

从本质上说，任何不会达到其物理内存消耗上限的工作负载都适合配置AMS。

Essentially , any workload that is not maximizing its physical memory consumption is an excellent candidate for AMS .

由于要在RAM和分页空间之间进行选择，在RAM可用的情况下，大多数人显然都更希望使用物理内存。

Obviously , given the choice between RAM and paging space , most people would prefer to use physical memory , if the RAM is available .

答：如果希望应用程序正常执行，则不应该将应用服务器实例的JVM换出物理内存中。

Answer : If you want your applications to perform , the application server instance 's JVM should not swap out of physical memory .

在这种情况下，所有LPAR的工作集内存需求可以超过池中的物理内存量。

In this scenario , the working set memory requirements of all LPARs can exceed the physical memory in the pool .

这是因为多个服务器能够更好地利用物理内存，这又使LotusDomino数据库结构缓存远远优于文件系统缓存。

This finding might be explained through better use of physical memory , whereby the Lotus Domino cache of database structures significantly outperformed the file system â™ s cache .

“另一种定义是，如果一个数据库的索引即使是超级计算机或计算机集群的TB级物理内存都无法容纳，那么可以称之为超大数据库，”他说。

" Another definition would be a database whose index can no longer fit in physical memory-even the terabyte memory of a supercomputer or cluster of machines ," he says .

具体工作包括：内存管理：一般Linux都会用虚拟存储器技术来提供更多的内存空间，在计算机系统中提供的内存空间要比实际使用的物理内存大很多。

The specific work includes : Memory management : standard Linux adopts virtual memory technology , which is to provide memory space much larger than the physical memory actual used in the computer system .

这包括关于运行进程的平台的信息：物理内存、CPU数量和类型、库、命令行、线程堆栈和寄存器。

This includes information about the platform on which the process is running : physical memory , CPU number and type , libraries , command line , thread stacks , and registers .

由于可寻址内存的范围从数百到数十亿GB，可用物理内存（RAM）的限制变得更加重要。

With addressable memory in the range of hundreds to billions of gigabytes , it is the available physical memory ( RAM ) limitation that becomes much more important .