# io2
io library
This library gives a single threaded async executor that uses io_uring under the hood.
It supports polled (not interrupt driven) direct_io for disk io for minimum latency and maximum throughput.
Main priorities are simplicity, stability and efficiency.
## Requirements for Direct-IO usage
- Need to have linux kernel version >= 6.1
- Need to use ext4 or xfs.
- Need to enable io polling on your NVMe disk by setting nvme.poll_queues kernel parameter to at least 1
## License
Licensed under either of
* Apache License, Version 2.0
([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
* MIT license
([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
at your option.
## Contribution
Unless you explicitly state otherwise, any contribution intentionally submitted
for inclusion in the work by you, as defined in the Apache-2.0 license, shall be
dual licensed as above, without any additional terms or conditions.