Another interesting tree filesystem data structure is the Bε-tree ("b epsilon tree"), which also tries to bridge the gap between small writes and the large page

Another interesting tree filesystem data structure is the Bε-tree ("b epsilon tree"), which also tries to bridge the gap between small writes and the large pages of modern drives. The first paper/talk from 2015 has a fun name "BetrFS: A Right-Optimized Write-Optimized File System" and they published a few dozen times until 2022. https://www.betrfs.org/ https://www.betrfs.org/