Duration: 1:00:31

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This talk will describe BetrFS, a file system built on B epsilon -trees, a Write-Optimized Data Structure (WODS). BetrFS outperforms widely-used file systems, such as ext4 and xfs, on many benchmarks, sometimes by orders of magnitude. A recent paper on BetrFS was the runner-up for best paper at USENIX FAST 2015. The talk will cover - Write-optimized data structures, such as LSM-trees and B epsilon -trees - Comparison of WODS for file system applications - How to design a file system around the performance strengths of WODS - Ongoing work to make BetrFS "dominate" all other file systems