Considerations for using large pages

Large page support is a special purpose performance improvement feature and is not recommended for general use. Note that not all applications benefit from using large pages. In fact, some applications, such as applications that perform a large number of fork() functions, are prone to performance degradation when using large pages.

Rather than using the LDR_CNTRL environment variable, consider marking specific executable files to use large pages, because it limits the large page usage to the specific application that benefits from large page usage.

If you are considering using large pages, think about the overall performance impact on your system. While some specific applications might benefit from large page usage, you might see a performance degradation in the overall system performance due to the reduction of 4 KB page storage available on the system. If your system has sufficient physical memory such that reducing the number of 4 KB pages does not significantly hinder the performance of the system, then you might consider using large pages.