zramctl from util-linux 2.27.1

Usage: zramctl [options] <device> zramctl -r <device> [...] zramctl [options] -f | <device> -s <size> Set up and control zram devices. Options: -a, --algorithm lzo|lz4 compression algorithm to use -b, --bytes print sizes in bytes rather than in human readable format -f, --find find a free device -n, --noheadings don't print headings -o, --output <list> columns to use for status output --raw use raw status output format -r, --reset reset all specified devices -s, --size <size> device size -t, --streams <number> number of compression streams -h, --help display this help and exit -V, --version output version information and exit Available columns (for --output): NAME zram device name DISKSIZE limit on the uncompressed amount of data DATA uncompressed size of stored data COMPR compressed size of stored data ALGORITHM the selected compression algorithm STREAMS number of concurrent compress operations ZERO-PAGES empty pages with no allocated memory TOTAL all memory including allocator fragmentation and metadata overhead MEM-LIMIT memory limit used to store compressed data MEM-USED memory zram have consumed to store compressed data MIGRATED number of objects migrated by compaction MOUNTPOINT where the device is mounted For more details see zramctl(8).