I think it's pretty much free performance that's being left on the table. There's slight cost to binary size. And it may not perform better in absolutely all ci

I think it's pretty much free performance that's being left on the table. There's slight cost to binary size. And it may not perform better in absolutely all circumstances (but it will in almost all). Rust used to use jemalloc by default but switched as people found this surprising as the default.