The Rust Performance Book (2020) (nnethercote.github.io)

Awesome. I actually started writing notes for something like this the other day. Will read asap :)

edit: Glad to see hashers at the top. This is one of the easiest wins you can get and it can be pretty significant.

I see some stuff that could be added. `dyn` vs static dispatch, for example. Do I just open an issue somewhere?

edit: Created issues.

Related:

The Rust Performance Book - https://news.ycombinator.com/item?id=25122178 - Nov 2020 (19 comments)

The "Profiling/Debug Info" chapter states that one needs to rebuild compiler and stdlib in order to profile the stdlib.

If I understand correctly, this can be accomplished via flag '-Zbuild-std'.

The part where it says that parking_lot's Mutex is faster then std's is obsolete since 1.62.0 IIRC.