Tokio dominates async Rust, but its epoll-based model makes it hard to adopt io_uring. This talk explains why async Rust’s design creates that friction and introduces an approach to support both I/O models: switching runtimes at compile time. With this method, I/O middleware can work with epoll and io_uring without changing its code.
Founded tonbo.io in 2024, offering open serverless analytics DB service. Worked in infra team of Bytedance, delivering 10+PB per day time-series data processing and Rust infra. Owner of ThriftPy, 50m downloads per month, trusted by Bytedance, X, Rapids AI and Zapier.
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