Linux Kernel Journey

Nov 7, 2025 · Fundamentals

Self‑Destructing Page Cache: Huawei’s ModelFS and vivo’s F2FS Uncached Buffer I/O Innovations

The article examines how Huawei’s ModelFS makes prefetch and memory reclamation programmable and how vivo adapts F2FS to support uncached buffer I/O, enabling AI model weights to be loaded without lingering in the page cache and eliminating kswapd overhead.