[ignurant]

In addition to the Ruby under a Microscope (linked elsewhere), a lot of talks from Aaron Patterson (Tenderlove) are enlightening in this regard. I've learned a lot from them, and they also provided the inspiration to keep digging. Some highlights:

Memory:

- https://www.youtube.com/watch?v=ZfgxvNUfQdU&t=3s&ab_channel=...

- https://www.youtube.com/watch?v=1F3gXYhQsAY&ab_channel=Confr...

JIT and the Ruby VM:

- https://www.youtube.com/watch?v=FCjwSOlHqbY&ab_channel=hexde...

- https://www.youtube.com/watch?v=5QgQicKHmeU&ab_channel=RubyC...

And loads of others.