Comment by pebal

> I haven't seen a C++ programmer carefully opt into GC for a subset of their allocations even though there are GC libraries written for the language.

Can you give an example of such GC libraries?

> Whoever made that claim? Gamedevs particulary have been writing custom memory allocators since decades precisely because they know free() is not free and malloc() isn't fast.

Game developers use engines based on the GC.

> It's not an illusion, you literally use control over memory management.

The shared_ptr does not provide full control.

> What they don't want is random stalls in odd frames.

You can have fully concurrent GC, without any stalls.