Tips: Windows 2000/XP speed-up skills 4

If the current computer's memory capacity has reached more than 512MB, then you can refer to the following methods to get the system running speed.

Open the registry editor, find [HKEY_LOCAL_MACHINE\\System\\CurrentControlSet\\Control\\Session Manager\\Momory Management], modify some key values ​​in the right pane, as follows (note that do some settings) The premise is that the memory is better than 512MB and is limited to Windows 2000/XP.

(1) "LargeSystemCache" (starting a large system cache): Open a large memory space in memory for the pre-read operation of the disk file system. 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 memory is much faster than the hard disk. In this way, between the CPU and the memory, the performance bottleneck is formed 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), this will make all programs and data mandatory to run in physical memory instead of using virtual memory . Obviously, when there is enough physical memory to complete the required tasks (such as 1GB or more), this will greatly improve the system performance. Enabling it for users with only 128MB or less of memory may be a disaster - the system makes frequent mistakes until it crashes.

(4) "IOPageLockLimit" (custom input /output buffer size): The input and output system is the channel for transferring data between the device and the microprocessor, and the data transfer will be smoother when the buffer size is expanded. 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.