Tuesday, July 22, 2008

Optimise System Cache

Desktop systems are normally optimised for applications, and servers for file caching. Depending on how you use your system, you may want to optimise your system for either. This Registry Hack will show you how to do it. Just open Regedit(START>>RUN>>Type REGEDIT)



Navigate to:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet \ControlSession Manager\Memory Management




Find the setting LargeSystemCache. Set this DWORD value to 1 for server behaviour or to 0 for desktop behaviour.





This is for win xp. You need to restart the computer for the change/effect to take place.If particular key to which we asked you to navigate doesn?t exist, you?ll need to create it.Be doubly sure that the path is correct and the key doesn't exist before you create it. Back up your registry before you do it(click here)

1 comment:

lmiller7 said...

Be very careful with this one.
Microsoft warns that LargeSystemCache is intended only for systems primarily used as file servers, and then in only specific cases. Very few XP systems are used this way. It basically tells Windows that file caching has priority over memory for applications.

This setting can have cause severe problems with some common hardware configurations. It creates an environment that many devices and device drivers were not designed for. Users have reported problems ranging from severe performance problems, system instability, and data corruption. In some cases users have been forced to reinstall Windows to restore operation. It is deadly with some common video cards and other devices.

Inverstigate the implications thoroughly before trying this setting.
YOU HAVE BEEN WARNED!

Larry Miller
Microsoft MCSA