Musl is still a kind of experiment. I would not recommend running experiments in production…
Just a few random links:
https://nickjanetakis.com/blog/benchmarking-debian-vs-alpine...
https://news.ycombinator.com/item?id=28312433
https://www.linkedin.com/pulse/musl-libc-alpines-greatest-we...
https://martinheinz.dev/blog/92
https://www.linuxquestions.org/questions/linux-software-2/mu...
https://unix.stackexchange.com/questions/729342/performance-...
https://github.com/rust-lang/rust/issues/70108
https://news.ycombinator.com/item?id=23080290
https://vector.dev/highlights/2020-07-09-add-musl-and-glibc-...
There are more. Much more of those!
Musl exist in large parts just for ideological reasons. It still rides some hype in industry as industry hates GPL software…