$ cat /sys/block/zram0/max_comp_streams
4

$ cat /sys/block/zram0/comp_algorithm
lzo [lzo-rle] lz4 zstd
$ echo lzo > /sys/block/zram0/comp_algorithm
$ cat /sys/block/zram0/comp_algorithm
[lzo] lzo-rle lz4 zstd

$ cat /sys/block/zram0/disksize
0
$ echo 1g > /sys/block/zram0/disksize
$ cat /sys/block/zram0/disksize
1073741824

$ echo 1g > /sys/block/zram0/mem_limit
