I'm still looking for an _easy_ way to write servers that can handle many TCP connections with Rust. The native thread/connection model quickly shows its limit

I'm still looking for an _easy_ way to write servers that can handle many TCP connections with Rust. The native thread/connection model quickly shows its limits, and is very slow on virtualized environments. mio is as low-level as libevent and just as painful to use. mioco and coio are very nice but blow the stack after 50k coroutines.