Compressed swap has also been around for ages. There's also been swapping to GPU memory (if free). There are also advanced page replacement algorithms. One i

Compressed swap has also been around for ages. There's also been swapping to GPU memory (if free). There are also advanced page replacement algorithms. One interesting algorithm I read about a while back was using LZW not to compress swap, but to predict future page usage from past patterns. etc. etc. It's all still paging/swapping.