3 ms·

I'm sure it's not complete, but I also wouldn't be surprised if 99% of what's in HotSpot is optimization tweaks and performance boosts which aren't essential to

• cmrdporcupine 3y ago
  It's also unclear to me if the architectural assumptions made in GC & VM engineering 20 years ago still apply today. I'm not an expert in this field, so take with a grain of salt... but I do wonder if a VM engineered from the ground-up today targeting recent ISAs would look substantially different.
• xmcqdpt2 3y ago
  It's mostly GC and JIT and a huge amount of corner case interactions between them. And also the many supported instruction sets.