#Memory
Sep 27, 2026
Linux Memory Management Internals: Transparent Huge Pages, TLB Shootdowns, and Zero-Copy I/O
A deep Linux kernel systems guide to memory architecture: how multi-level page tables and TLB misses degrade performance, how Transparent Huge Pages (THP) and hugetlbfs expand TLB coverage, why THP compaction causes latency spikes in Redis/Postgres, and how to eliminate TLB shootdowns with zero-copy I/O.