Does malloc/new return memory blocks from Cache or RAM?

Question

I wanted to know whether malloc/new returns memory blocks from Cache or RAM.

Thanks in advance.

Answer 1

You are abstracted of all that when living as a process in the OS, you only get memory.

You shouldn't worry ever about that, the OS will manage all that for you and the memory unit will move things from one to another. But you still see a single virtual memory layout.