Correctly configure CPU L2 cache in Windows XP

In Windows XP, the CPU L2 cache is not turned on by default. In order to improve system performance, we can open it by modifying the registry or by using software such as "Windows Optimizer". Run the registry editor, expand the HKEY_LOCAL_MacHINE\\System\\CurrentControlSet\\Control\\Session Manager\\Memory Management branch, double-click "SecondLevelDataCace" in the right window, and then directly fill in the secondary level of the CPU used by the current computer in the pop-up window. The cache capacity is fine. The Celeron processor's L2 cache is 128KB, and its value should be set to 80 (hexadecimal, the same below). PII, PIII, P4 are all 512KB L2 cache, should be set to 200; PIIIE (EB), P4 Willamette only 256KB L2 cache, should be set to 100; AMD Duron only 64KB L2 cache, should be set to 40; K6- 3 has 256KB L2 cache; Athlon has 512KB L2 cache; Athlon XP has 256KB L2 cache; Athlon XP (Barton core) has 512KB L2 cache. Using Windows Optimizer can also correctly set the CPU's L2 cache: Start Windows Optimizer, select "System Performance Optimization", in "File System Optimization", the top is about the CPU L2 cache settings. Once you drag the slider to the appropriate location, save your settings and restart your computer.