The BeOS file system: an OS geek retrospective
The Be operating system file system, known simply as BFS, is the file system for the Haiku, BeOS, and SkyOS operating systems. When it was created in the late '90s as part of the ill-fated BeOS project, BFS's ahead-of-its-time feature set immediately struck the fancy OS geeks. That feature set includes:
A 64-bit address space
Use of journaling
Highly multithreaded reading
Support of database-like extended file attributes
Optimization for streaming file access
In this short article, we'll take a look at the legendary BFS, starting with some filesystem basics and moving on to a discussion of the above features. Also included at the end of the article are two interviews: one with the person who developed BFS for Be, and another with the developer behind the open-source version of BFS.
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