Loom sets out to give you a sane programming paradigm similar to what threads do (i.e. as opposed to programming asynchronous I/O in Java with some type of callback) without the overhead of Operating System threads.
That's a very cool and a noble pursuit. But the title of this article might as well have been "5M persistent connections with Linux" because that's where the magic 5M connections happen.
I could also attempt 5M connections at the Java level using Netty and asynchronous IO - no threads or Loom. Again, it'd take more Linux configuration than anything else. If that configuration did happen though now you can also do it in C# async/await, javascript, I'm sure Erlang and anything else that does Asynchronous I/O whether it's masked by something like Loom/Async/Await or not.
That's a very cool and a noble pursuit. But the title of this article might as well have been "5M persistent connections with Linux" because that's where the magic 5M connections happen.
I could also attempt 5M connections at the Java level using Netty and asynchronous IO - no threads or Loom. Again, it'd take more Linux configuration than anything else. If that configuration did happen though now you can also do it in C# async/await, javascript, I'm sure Erlang and anything else that does Asynchronous I/O whether it's masked by something like Loom/Async/Await or not.