Johny Mnemonic - Memory Doubler

cat /etc/default/grub | grep zswap
GRUB_CMDLINE_LINUX_DEFAULT="splash quiet zswap.enabled=1 zswap.max_pool_percent=50"

https://www.ibm.com/developerworks/community/blogs/fe313521-2e95-46f2-817d-44a4f27eba32/entry/new_linux_zswap_compression_functionality7?lang=en