Linux 7.0 Expected to Bring IO_uring Iopoll Polling Improvements
4 months ago
- #Kernel
- #IO_uring
- #Linux
- Linux 7.0 (or 6.20) is expected to include IO_uring IOPOLL polling improvements.
- Jens Axboe, IO_uring lead developer, has queued a patch to improve IOPOLL polling for asynchronous I/O.
- The patch changes the IOPOLL completion list from singly linked to doubly linked, allowing easier removal of completed requests.
- This improvement helps when different devices or disparate I/O operations are involved in the same polling ring.
- Fengnan Chang of Bytedance originally proposed the improvement, sharing benchmark results showing significant performance gains.