Hey, dude, thank you for your post about 1m requests.

I really liked it, and it helped me much. But I guess there is a need to add go-httpbin instead of default httpbin. The default one was giving me ServerDisconnected && ClientConnector errors. Also, I think, it's an option to add ulimit -n ${SIZE_OF_SEMAPHORE} and use aiohttp.TCPConnector(limit=SIZE_OF_SEMAPHORE)
which would definitely increase performance.