Which compile options do you recommend for best performance, but such that it is still memory-save? (I assume you use memory-save, right?) Currently I use "nim c --opt:speed". Compared to other languages (Go, Rust mostly) the runtime performance (for my use cases) is a bit slower, for some of the cases. Hm, it might be that you disable memory safety, if you compare against C++...
I just use -d:release, along with a bunch of other options related to static compilation with musl-libc. I've tried -d:danger before and the reliability of my calculations went completely out the window. I think Datamancer and Arraymancer are dependent upon some of those checks and guarantees. The --opt flag didn't make enough of a difference in my case.
