The 1 million in the title is misleading (1M per hour is nothing to write home about, only 278/sec). There are frameworks that are able hit 1M per minute plus (16,666/sec).
Here, mioco handling 10M http request per second(1) on my desktop:
https://github.com/dpc/mioco/blob/master/BENCHMARKS.md
1) with a bit of cheating http server.
With actual proper http parsing it goes down to 368K req/s, but that's still a lot.
https://www.techempower.com/benchmarks/#section=data-r12&hw=...