Probably the lack of HTTP keep-alive support - it's explicitly disabled due to bugs in the older HTTP library the stable version uses (seen as a large number of

Probably the lack of HTTP keep-alive support - it's explicitly disabled due to bugs in the older HTTP library the stable version uses (seen as a large number of errors in previous rankings), so each request needs a new TCP connection. https://github.com/TechEmpower/FrameworkBenchmarks/blob/f34037cef59727c88939b6b690704ac213443a67/frameworks/Rust/rocket/src/main.rs#L201 https://github.com/TechEmpower/FrameworkBenchmarks/blob/f340...