XP system memory optimization tips

XP system memory optimization tips

Optimize XP system memory to improve your computer performance, modify the registry to play the advantages of large memory, improve work efficiency.

Now open the Registry Editor, find [HKEY_LOCAL_MACHINE\\System\\CurrentControlSet\\Control\\Session Manager\\MomoryManagement], and modify the key values ​​in the right pane (note that the prerequisites for doing this are It is better to have more than 512MB of memory and is limited to Windows 2000/XP).

(1)"LargeSystemCache": Starts a large memory space in memory for prefetching of disk file systems. When the data requested by the program increases, Windows automatically reads ahead through the system cache, so that the program can get the required data as fast as possible. Since enabling this system buffer consumes more physical memory, the available physical memory that can be utilized by the program is reduced. Set its value to 1. In this way, the system cache is increased from 4MB to 8MB.

(2) "SecondLevelDataCache" (Improve cpu performance): CPU processing speed is much greater than the memory access speed, and the memory is much faster than the hard disk. In this way, between the CPU and the memory, there is a bottleneck effect on the performance between the memory and the disk. The previous "LargeSystemCache" is designed to alleviate the memory and disk bottleneck, and the CPU is also set to obtain the processed data quickly from the memory. A buffer mechanism L2 Cache (secondary cache). Adjusting this key value will enable Windows to better match the CPU's use of the caching mechanism to achieve higher data prefetch hit rates. It is recommended to set it to 512.

(3) DisablePagingExecutive: Change its value to 1 (hexadecimal), which will force all programs and data to be forced to run in physical memory instead of using virtual memory. . Obviously, when there is enough physical memory to accomplish the required tasks, this will greatly improve the system performance. For users with only 64MB of memory, enabling it may be disaster —— the system frequently goes wrong until it crashes.

(4)"IOPageLockLimit" (Customized input/output buffer size): The input/output system is the channel for transferring data between the device and the microprocessor. When the buffer size is expanded, the data transfer will be smoother. . In the same way, the size of the specific setting depends on the size of the physical memory and the number of running tasks. Generally speaking, if the memory has 64MB, the hexadecimal value of the double-byte key can be set to 400 (1MB), 800. (2MB) or 1000 (4MB) 128MB memory can be set to 1000 (4MB), 2000 (8MB) or 4000 (16MB); 256MB memory 4000 (16MB) or 8000 (32MB). Of course, if you have more memory, you can set it to 10000 (64MB) or more. When set to 0, Windows will automatically configure.

After setting these, restart the system.