Tencent Architect

Apr 2, 2026 · Operations

How Modernizing Linux Swap Boosts Performance and Cuts Memory Overhead

This article translates and consolidates Jonathan Corbet’s three-part “Modernizing swapping” series, detailing the introduction of swap tables, removal of swap maps, and virtual swap concepts that together improve Linux kernel swap performance by up to 20%, reduce metadata memory by up to 30%, and simplify the codebase.