AI Helped Uncover a "50-80x Improvement" for Linux's IO_uring
2 days ago
- #IO_uring
- #Linux
- #AI
- Jens Axboe, Linux block maintainer, used Claude AI to debug IO_uring slowdowns in AHCI/SCSI code.
- The resulting patches can deliver a 50-80x improvement in IO_uring performance for idle systems.
- The main patch consists of just one line of code, preventing ppoll() from sleeping up to 499ms before submitting IO.
- Axboe shared his experience on X, noting a 60-80x performance improvement and an incident where Claude partially destroyed his VM's virtual disk during testing.
- The patches are now staged for inclusion in QEMU.