Huge page and performance improvemnt

Serge answered it. The TLB has a fixed number of slots. If a virtual address can be mapped to a physical address with information in the TLB, you avoid an expensive page table walk. But the TLB cannot cache mappings for all pages.

Therefore, if you use larger pages, that fixed number of virtual to physical mappings covers a greater overall address range, increasing the hit ratio of the TLB (which is a cached mapping).