Virtual memory and paging files

Paging file: That is, a virtual memory file, or a swap file, the paging file in Windows 2000/xp/2003 is called Pagefile.sys

What is stored in the virtual. Memory is a big part of the computer, and all running programs in the computer need to be executed in memory, and if you execute a large or many program, the memory is exhausted. To solve this problem, Windows uses a virtual memory technology that takes out some of the hard disk space to act as memory, and when memory is exhausted, the computer automatically calls the hard disk to act as memory to relieve memory tension. For example, if the computer has only 128MB of physical memory, when reading a file capacity of 200MB, it is necessary to use a large amount of virtual memory, the file is read by memory will be stored in the virtual memory, waiting for the memory to store all the files in the virtual memory, 

You will then release the files stored in the virtual interior into the original installation directory. 

How to set up virtual memory correctly. General Windows XP By default is the use of the remaining space on the C disk to do virtual memory, so the larger the remaining space on the C drive, the better the system, virtual memory is the dynamic change with your use, so that C disk is prone to disk fragmentation, affecting the speed of the system, so, It is a good idea to set the virtual memory in other partitions, such as the D drive. View virtual memory settings as follows: The size of the virtual memory settings, more explanation is 1.5 to twice times the physical memory, it is set up in a way that is not the same as our usual operation. 

The following is the correct method. Right click on "My Computer", left click "Properties", click "Advanced" tab, click "Settings" in "Performance" button, then the "Advanced" tab, click the "Change" button, the window is the Virtual Memory Settings window, the general default virtual memory is from small to large range of values, This is the scope of the virtual memory changes, it is best to give it a fixed value, so it is not easy to create disk fragmentation, the specific value according to your physical memory size, generally 1.5 to twice times the physical memory, such as memory 256M, then should be set 256*1.5=384m, or simply 512M, The Setup method is as follows: Assuming that the memory is 256M, the virtual storage in the D disk, the default is to clear, keep the C drive selected, the Radio "no Paging File (N)" and then press the "Set" button, the C disk next to the virtual memory disappears, and then select the D disk, the "Custom size", in the following "Initial size" and " The maximum value of "two boxes are added 512, and then click on the" Settings "button, you will see the D-Disk next to the" 512-512 "word, so that the set up, and then all the way to determine, eventually, the system will have to restart, restart, then completed the setup.