We actually tried switching to asyncio in production, but got worse cpu utilisation and worse latency (vs greenlet). After some benchmarking and tuning, we got

We actually tried switching to asyncio in production, but got worse cpu utilisation and worse latency (vs greenlet). After some benchmarking and tuning, we got a bit better latency, but CPU utilisation was still worse, so we actually ended up swithcing back to just using greenlet :(