FusionFS: Fusing I/O Operations using CISCOps in Firmware File Systems

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" summary

FusionFS is a firmware-level in-storage filesystem that fuses multiple I/O and data-processing steps into single offloaded operations called CISCOps, reducing system calls, PCIe transfers, and data copies; it adds a fine-grained recovery mechanism MicroTx (plus macro transactions) and a CFS-like scheduler to budget device CPU and memory. The prototype is emulated in-kernel on a 64-core Xeon with 512 GB NVMe and shows up to 6.12X throughput gains versus state-of-the-art filesystems and 2.65X faster recovery in their benchmarks.

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" chapters (20)

1. 0:00Intro
2. 0:27Storage Hardware and Software Trend.
3. 1:40Evolving Storage with Fast Compute
4. 2:03State-of-the-art Designs
5. 2:46Common I/O Sequences in Application
6. 4:50Storage Approaches Summary Compute
7. 5:05Our Solution: Fusion FS
8. 6:02Everlasting Debate
9. 6:22FusionFS: RISC vs CISC operations
10. 6:52FusionFS: CISC Operations
11. 7:34FusionFS Components
12. 8:04FusionFS I/O Processing Example
13. 10:24Crash Consistency for CISCops
14. 10:47MacroTx: All-or-nothing Approach
15. 11:31MicroTx with Auto Recovery
16. 12:09Outline
17. 12:46Evaluation Goals
18. 14:03Macro-benchmark: Filebench
19. 14:52Device Compute Fairness
20. 16:02Conclusion