CRIU: Support sparse ghosts
- Mentors
- Pavel Tikhomirov
- Organization
- CRIU
- Technologies
- c, linux
- Topics
- linux, filesystem, ghost file, Fiemap Ioctl, sparse file, CRIU
Nowadays, CRIU will save the ghost file by using a lot of system calls to determine where the chunks are, which is very expensive, especially for highly sparse files, so this project aims to improve the solution for dumping sparse ghosts in CRIU.