[MauranKilom]

If I spawn 8 threads to do some kind of processing while you have 12 logical cores, I am missing out on a 50% performance boost (assuming the work is CPU bound).

If I spawn 20 threads when you only have 4 logical cores, they will just stand in each other's way (caches, context switches, etc.) and possibly eat 5x as much memory as needed on top of that.

I don't want to skirt the HN rules, but let me be clear that your replies appear as aggressive and incendiary while hinting at a lack of understanding for basic concurrency concepts. I don't know whether that's what it actually is or whether there's some miscommunication happening, but either way you're coming off as an ass. Be kind.