Comment by AtlasBarfed

I get you can specifically write code that does not malloc, but I'm curious at scale if there are heap management / fragmentation and compression issues that are equivalent to GC pause issues.

I don't have a lot of experience with the malloc languages at scale, but I do know that heat fragmentation and GC fragmentation are very similar problems.

There are techniques in GC languages to avoid GC like arena allocation and stuff like that, generally considered non-idiomatic.