EROFS: Past, Present, and Future
summary
EROFS is a small on‑disk read‑only FS used by Android since 13 and integrated into container stacks; the team shows working tools: a tar‑stream converter and remote snapshotter that create loopback EROFS layers, an overlaybd/overd path for lazy loading over overlaybd, and containerd integration that reduces pulled blobs to 12 MB metadata in a demo. Benchmarks show faster random and sequential I/O vs squashfs, compressed dedup across layers, and Intel IAA tests that are IAA compression close to LZ4 while keeping much smaller images; roadmap includes QAT/IAA accel, large folios and pagecache sharing.
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chapters (5)
- 0:00Introduction to EROFS
- 23:37Container image solutions
- 43:20Advanced use cases
- 45:03Roadmap and future work
- 45:43Q&A session
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