Linux Kernel Journey

Feb 27, 2025 · Cloud Native

Designing FUSE: From Kernel VFS to Userspace and JuiceFS Performance

This article explains the evolution of file system architecture from kernel‑level VFS to userspace via FUSE, reviews the historical role of NFS, details JuiceFS's implementation on top of FUSE, and presents benchmark results that demonstrate its high throughput and practical limitations.