THE VIDEO SHELF · write-optimized file systems
BetrFS: A Right-Optimized Write-Optimized File System
A Microsoft Research talk on BetrFS, a file system built on B-epsilon trees, a write-optimized data structure. It covers WODS such as LSM-trees, how to design a file system around them, and benchmark wins over ext4 and xfs.
Why HN readers recommended it
HN points to it as a solid, if long, introduction to B-epsilon trees and why BetrFS is built the way it is.
This is a summary from the source dataset, not an endorsement by Hacker News or the video creator.
Video & recommendation details
- Creator / channel
- Microsoft Research
- Topic
- write-optimized file systems
- Format
- talk
- Level
- advanced
- HN recommenders in dataset
- 2
- HN mentions in dataset
- 6
- Recommendation years in dataset
- 2016–2023
These counts and years describe the included Hacker News records; they are not YouTube views or the video’s publication date.
From the original HN conversations
Excerpts from the recorded comments. Follow each source for the full comment and surrounding discussion.
This isn't completely fair, although most of it is. Some of the reasons for modifying Linux are performance enhancements to the filesystem layer that only make sense with a Bε-tree filesystem (and are not possible without patching Linux). They cover this in the hour-long talk …
loeg on Hacker News · 2018-10
In BetrFS: An in-kernel file system that uses Bε trees to organize on-disk storageThe website doesn't seem to mention that several of the papers on the filesystem won best-paper awards at major conferences. The paper, Optimizing Every Operation in a Write-Optimized File System, in particular, won best-paper award at FAST '16. Also, if you're interested in learning more …
williamkuszmaul on Hacker News · 2021-12
In BetrFS: an in-kernel file system that uses Bε trees to organize on-disk storage
Summaries, classifications and recommendation records are from the HackerTube source dataset. Read about this library and its limitations.