Mavericks Osx - Link

: Instead of slowing down the system by moving data to the hard drive when RAM was full, OS X Mavericks compressed inactive data in the memory, allowing the Mac to handle more open applications simultaneously. 3. New Native Apps

sudo memcompression -trace (requires root) mavericks osx

It wasn't the flashiest update, but it might have been the most important. : Instead of slowing down the system by

| Feature | Mavericks Support | |------------------------|-------------------| | Swift (1.x) | No (needs 10.9+) | | Metal | No (10.11+) | | ARC | Yes | | 64-bit only apps | Yes | | Automatic Reference Counting | Yes | mavericks osx