Detailed description of Windows XP virtual memory optimization

Virtual memory is very inconspicuous in Windows XP. Windows XP automatically sets it up when it is installed. Users don't even have to worry about this file. However, virtual memory as a supplement and extension of physical memory plays a decisive role in the stable operation of windows xp. If it is not well set, it will affect the overall performance of the computer.

What is virtual memory?

Virtual memory is Windows XP as part of the hard disk space used as memory. Virtual memory is essential even if physical memory is large. Virtual memory on the hard disk is actually a huge file, the file name is PageFile.Sys, usually can not be seen. The resource manager's protection of system files must be turned off to see this file. Virtual memory is sometimes referred to as "page file"; it is from the file name of this file.

Setting up the hard disk

Optimizing virtual memory, why do you want to set the hard disk? This is because virtual memory files (also known as page files) are stored on the hard disk, and improving the performance of the hard disk can also improve the performance of the memory to some extent.

1. Enable Disk Write Cache Right click on the "My Computer" button to select "Properties -> Hardware", open Device Manager to find the hard disk currently in use, click Right click on the mouse and select Properties. In the <quo;Policy" page of the hard disk properties, open “Enable write caching on disk”.

This option will activate the hard disk's write cache, which will increase the read and write speed of the hard disk. However, be aware that after this feature is turned on, if the computer suddenly loses power, it may result in irreparable data loss. It is therefore best to turn this feature back on with a UPS. Of course, if you don't do any important data processing work when you use the computer normally, it doesn't matter if there is no UPS. This function will not cause too much loss to the system. 2. Open Ultra MDA in the device management and select IDE ATA/ATAPI controller. "Basic/Secondary IDE Controller", right-click and select "Properties" to open the “Advanced Settings" page. The most important setting item here is “transfer mode”, generally should select “DMA (if available)”.

3. Configuring recovery options When a fatal error is encountered during Windows XP operation, a snapshot of the memory is saved as a file for system debugging. For most normal users, this file is not available. What is useful, but it will affect the performance of virtual memory. So it should be closed.

Right click on “My Computer", select “Properties->Advanced", under "Performance", click “Set” button in “ In the Performance Options & rdquo; select “Advanced& rdquo; page. There is a "memory usage" option. If you set it to "system cache", windows xp will use about 4MB of physical memory as the cache for reading and writing the hard disk, which can greatly improve the physical memory and virtual memory. The speed of data exchange between. By default, this option is turned off. If your computer has sufficient physical memory, such as 256M or more, it is best to turn this option on. But if physical memory is tight, you should still leave the default options.