What the hell are they? how are they different (I've written my understanding in an answer below) In the Zswap system, when a page is evicted from the zswap to the actual swap is it stored in a compressed from? (or is it decompressed before storing?, AFAICT it is still compressed but i can't be sure) What is the current state of zcache? it was apparently removed or something in 3.11. What does thi