EROFS, an Introduction and our Smartphone Practice
summary
EROFS is a Linux read-only filesystem that ships on smartphones and reduces app and library storage by about 50–60% size reduction versus uncompressed images while beating some squashfs configurations; it uses fixed-output compression (small 4K-oriented blocks), hybrid decompression (synchronous workqueue paths and cache decompression) and zero-copy decompression to avoid page-cache bloat, is upstreamed through staging toward mainline, and shows measurable app-start and IO improvements on 16 GB devices.
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chapters (10)
- 0:00Start
- 3:16Questions
- 13:19Fixed-output compression (cont.)
- 16:30Our solution
- 22:04Decompression in place
- 24:36Limited bounced buffers
- 26:43On-disk brief introduction
- 31:22Real app launching
- 32:39EROFS landing progress
- 33:17My to-do lists on EROFS
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