Allocator Wrestling is a summary of Eben Freeman's talk from GopherCon 2018 on the Go memory allocator ( via , and see also ) and its garbage collection system. The slides are here ( via ) and have more details and elaborations on various things than the livebloged summary, although you probably want to read both (good talks are rarely entirely captured by their slides).

I love seeing under the hood of a complex system this way, and it's probably helped me move towards understanding some things about how much memory Go programs use (or appear to use).