[arrowsmith]

Okay, you've made me want to learn about it. Where do I start? What concepts do I need to understand? Any reading recommendations?

[Mockapapella]

Haven't read through it, but I suspect this would be a good place to start: https://cpu.land/

HN Discussion: https://news.ycombinator.com/item?id=36823605

[hayley-patton]

Drepper's "What every programmer should know about memory", though you mightn't find it all interesting. https://gwern.net/doc/cs/hardware/2007-drepper.pdf