Liangxu Linux

Dec 11, 2023 · Fundamentals

How to Squeeze Extra RAM on a Resource‑Constrained Embedded Linux Device

This article examines memory usage on a Junzheng T31ZC embedded Linux board, breaks down physical and kernel allocations, and presents practical techniques—such as trimming kernel symbols, stripping ELF files, optimizing rootfs, and manually dropping caches—to reclaim valuable RAM without adding hardware.