FUSE passthrough represents an interesting development in filesystem virtualization, particularly within the Clear Linux ecosystem. The mechanism allows for more streamlined kernel-userspace interactions, potentially reducing traditional filesystem overhead.
Clear Linux, with its performance-centric design, seems particularly well-positioned to leverage this approach. The project’s emphasis on optimization and low-level system tuning makes it a natural testbed for exploring FUSE passthrough’s capabilities.
The core advantage lies in minimizing context switches and reducing performance penalties typically associated with userspace filesystem implementations. By enabling more direct data paths, FUSE passthrough could offer meaningful improvements in I/O responsiveness.
https://kernel-recipes.org/en/2024/schedule/how-cern-serves-1eb-of-data-via-fuse