Request: Roadrunner, Swoole, ReactPHP and the like

[BlueM]

PHP usually runs as an Apache module or via php-fpm with Nginx or some other webserver. However, in the least few years, alternative concepts have been introduced by new projects such as Roadrunner (Go server which spawns PHP worker processes), Swoole (long-running PHP processes with async I/O) and ReactPHP (ditto) and possibly others I haven’t heard of.

I’d by very much interested in hearing from people who have used these or similar projects in production.