|Manage File System Caching Memory (Windows NT/2000)|
Category: Home > Windows > File System > Caching and Memory
Windows will normally limit the amount of RAM that can be locked for file system operations. This setting allows you to modify the automatic value.
Open your registry and find the key below.
Create a new DWORD value named 'IoPageLockLimit' if it does not already exist. Set the value to equal the maximum number of Kbytes to be allocated to I/O operations as per the table below:
(MB) Decimal Hex
4 4096 1000
8 8192 2000
16 16384 4000
32 32768 8000
64 65536 10000
As with all performance related changes, get a baseline measurement using performance monitor and then make your changes in small increments and retest the performance after each change.
|(Default)||REG_SZ||(value not set)|
System Key: [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\|
Type: REG_DWORD (DWORD Value)
Value: 0 = default
Disclaimer: Modifying the registry can cause serious problems that may require you to reinstall your operating system. We cannot guarantee that problems resulting from modifications to the registry can be solved. Use the information provided at your own risk.
Last Modified: October 17, 2002