drop_caches — 2 Technical Articles

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.

Linuxdrop_cachesembedded

0 likes · 13 min read

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

ITPUB

Jun 23, 2017 · Fundamentals

How to Free Linux Memory Cache and Understand Buffer vs Cache

This guide explains Linux memory reporting with the free command, the roles of buffer and page caches, and provides step‑by‑step instructions to manually release cached memory using /proc/sys/vm/drop_caches, including practical command examples and clarifications of key concepts.

Cachebufferdrop_caches

0 likes · 11 min read

How to Free Linux Memory Cache and Understand Buffer vs Cache