mfu: add and test support for copy_file_range
Open
Nobody has claimed this yet.
- Dominant language
- C
- Stars
- 200
- Forks
- 85
- Avg merge
- 3d 21h
- Merged PRs (30d)
- 2
Description
To minimize kernel-user-kernel data transfers, look at copy_file_range. On some file systems the full command might execute on the server:
https://man7.org/linux/man-pages/man2/copy_file_range.2.html
https://github.com/hpc/mpifileutils/pull/367#issuecomment-691721070
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reading the copy_file_range(2) documentation and the discussion in mpifileutils#367, then locate mfu's existing file-copy entry point and tests. Done means support for the syscall is added and covered by tests demonstrating the intended copy behavior.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- c
- Domain
- operating-systems, performance
- Issue type
- Feature
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 48/100