...large allocations, so the impact during
allocation is smaller.

It's mostly untyped allocations. For...

...writeln(w);
    }

Anyway in both cases using dmd -vgc flag shows no GC allocations done.

Can't you spread the allocations out just like contemporary C-lib mallocs do in...

...time environment I'm thinking that Phobos allocations will be tracked in a stack like...

...into ASTs and generates text from those AST. Current bottleneck is currently AST-node allocations.

...Format appends, so it may involve multiple allocations, though it's possible it does a...

...format code; there may well
be intermediate allocations as it does its work).

Now I...

...gives me only a profile of used allocations over all time. What I really need...

...are a much better way to control allocations -- the caller specifies the allocation scheme (by...

...cons with copy-on-write (COW) managed allocations in D, typically for containers such as...