It is nowhere near stack allocation, please stop this nonsense. There was a paper claiming that, but the requirement was to set heap size 7x bigger than needed.

It is nowhere near stack allocation, please stop this nonsense. There was a paper claiming that, but the requirement was to set heap size 7x bigger than needed. Stack is also very hot in cache. Memory that GC is handing allocations from is not. I recently ported some of Cassandra code from Java to stack-only Rust and I got ~25x performance improvement, most from avoiding heap allocations and GC.