If you have over 100,000 threads, then you are at the point of scalability where you probably want more than what Go can provide. Async I/O would likely be bett

If you have over 100,000 threads, then you are at the point of scalability where you probably want more than what Go can provide. Async I/O would likely be better for your use case, because even 2kB of stack per thread is 195MB just from thread stacks.