3 ms·

Agreed, it seems weird to me to avoid garbage collection in a high level language. It is one thing to use escape analysis to avoid creating garbage, but malloci

Agreed, it seems weird to me to avoid garbage collection in a high level language. It is one thing to use escape analysis to avoid creating garbage, but mallocing every object is going be slower than a well tuned GC.

couchand 3y ago
> mallocing every object So don't do that then? Put most things on the stack. It's far faster than any allocation.
- kaba0 3y ago
  That’s also true of a GCd language though.
- nu11ptr 3y ago
  In the context of escape analysis (which would place many objects on the stack) that should have read: mallocing every _heap_ object
estebank 3y ago
I would say that in practice 80% of the values go on the stack, 18% in Box and 2% in an Arc/Rc. That's why Rust code tends to be fast: the common cases are really easy to represent with the borrow checker, so a hypothetical GC doesn't have to perform escape analysis to see if it is ok to specialise those allocations, while the more uncommon cases can still be represented, albeit more verbosely than a GCd language would need.