But if you read the thread, you realize he is testing on a 2011 laptop, and the older architecture may be causing the issues. He reported a 3x speedup running the benchmark on a Raspberry Pi 4 in the same thread[0]

Someone claimed that you don't get to see the benefit of io_uring in a hypervisor[1], but they did not provide benchmark results.

[0]: https://github.com/axboe/liburing/issues/189#issuecomment-94...

[1]: https://github.com/axboe/liburing/issues/189#issuecomment-73...