07/11/19 21:24:02 DxnjZeNd0
URLﾘﾝｸ(developer.apple.com)
Myth: The kernel needs to be 64-bit in order to be fully optimized for 64-bit processors.
Fact: The kernel does not generally need to directly address more than 4 GB of RAM at once.
The kernel is able to make larger amounts of memory available to applications by using long
long data types to keep track of mappings internally.