Hacker News Reader

You can write D programs that only do C style malloc/free, or even do Fortran style no allocation whatsoever (static and stack only).

The nice thing with D: Use a GC to develop quickly. If GC becomes a bottleneck, rewrite into C style where necessary.

The author considers this too much work for the benefit.

Nevertheless, everybody agrees that the D GC needs to improve.

It is unfortunately difficult to reason about. For instance, I use D's associative arrays in my program. I know that dynamic allocations must occur inside this, but I don't know what algorithm is being used and how it allocates memory.