Memory Optimization in Linux with 1GB Transparent Huge Pages

Experimental code is under development to implement 1GB PUD (Page Upper Directory) level Transparent Huge Pages (THP) in the Linux kernel. Early benchmark results indicate a 34% improvement in memory access times.

The main goal of this change is to reduce pressure on the Translation Lookaside Buffer (TLB), a hardware component that speeds up the translation of virtual addresses into physical addresses. By reducing TLB pressure, the overall efficiency of the system can be improved, especially in scenarios with high memory usage.

The introduction of 1GB PUD-level THPs represents an alternative approach to using Hugetlbfs, an existing mechanism for managing large memory pages. However, integrating these patches into the main kernel will take time, given the experimental nature of the code and the need for validation by the Linux kernel community.