Comment by dist1ll

Fwiw with ef_vi you have full control over the event queue - you don't need to busy-spin it, you can choose whatever strategy you prefer.

> tokio is appropriate for general userspace apps

Yep, and for those I wouldn't recommend it. But tokio is also widely used in performance-critical infrastructure and web services. For those I'd say it can definitely be worth taking a second look at kernel bypass.