Linux, Ramdisk.
zramctl NAME ALGORITHM DISKSIZE DATA COMPR TOTAL STREAMS MOUNTPOINT /dev/zram0 lzo 10G 9.8G 5.3G 5.5G 1 The compressed disk uses a total of 5.5GB of memory to mirror a 9.8G volume size (using in this case 8.5G). Removal is performed the same way as brd, except that the device is /dev/zram0 instead