Libnvmmio:Reconstructing Software IO Path w/ Failure-Atomic Memory-Mapped Interface

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" summary

Presents Libnvmmio, a user-level extension to memory-mapped I/O for non-volatile memory that provides failure-atomicity so programmers need not manage crash-consistency. Describes how Libnvmmio reconstructs the data I/O path for NVM to improve performance and scalability compared with syscall-based file systems and NVM-optimized file systems, and reports benchmark gains (microbenchmarks, SQLite Mobibench/TPC-C, and MongoDB YCSB).

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" chapters (19)

1. 0:00Intro
2. 0:26SW Overhead Greater than Storage Laten
3. 0:50Reconstruct SW IO Path with Libnvmmio
4. 1:05Reconstruct SW 10 Path with Libnym
5. 1:46User-Level 10 is Suitable in NVMM system
6. 2:22Logging is more Efficeint than Cow
7. 3:52Redo vs. Undo
8. 5:15Hybrid Logging
9. 5:49Centralized Logging with Fine-Grained Log
10. 6:59Per-Block Logging
11. 7:49Lock-Free Radix Tree
12. 10:08Commit & Checkpoint based on Epoc
13. 12:13Design Summary
14. 12:41Experimental Setup
15. 15:30FIO: Different Write Sizes
16. 16:27FIO: Random Write with Multithread
17. 17:15TPC-C on SQLite
18. 19:04SQLite WAL vs. Libnvmmio
19. 20:58Conclusion