> How do they manage to do that? One aspect I can think of is, trying not to use pointers and data structures with dynamic size. On the contrary, they do use l

> How do they manage to do that? One aspect I can think of is, trying not to use pointers and data structures with dynamic size. On the contrary, they do use lot's of pointers (actually byte slices) and structures with dynamic size, however they rely heavily on buffer pooling and carefully appending to such byte buffers instead of allocating new ones.