Linux command
zramctl 命令
文件
涉及管道、覆盖或删除，执行前请先确认路径和参数。
常用示例
Check
lsmod | grep -i zram
Enable
sudo modprobe zram
Enable
sudo modprobe zram num_devices=2
Find
sudo zramctl -f -s 2GB -a lz4
List
sudo zramctl
说明
zramctl sets up and controls zram devices, which are compressed RAM-based block devices. Zram is useful for creating compressed swap space or temporary filesystems, improving memory efficiency. After creating a zram device with zramctl, use mkswap and swapon to use it as swap, or mkfs to create a filesystem.
参数
- -f, --find
- Find and initialize the next free zram device
- -s, --size _size_
- Set the size of the zram device
- -a, --algorithm _alg_
- Set compression algorithm (lz4, lzo, zstd, etc.)
- -t, --streams _number_
- Set number of compression streams
- -r, --reset
- Reset the device
- -o, --output _list_
- Define output columns
- --raw
- Raw output format
- -n, --no-headings
- Do not print column headings
FAQ
What is the zramctl command used for?
zramctl sets up and controls zram devices, which are compressed RAM-based block devices. Zram is useful for creating compressed swap space or temporary filesystems, improving memory efficiency. After creating a zram device with zramctl, use mkswap and swapon to use it as swap, or mkfs to create a filesystem.
How do I run a basic zramctl example?
Run `lsmod | grep -i zram` in a terminal, then adjust file names, paths, flags, or remote targets for your system.
What does -f, --find do in zramctl?
Find and initialize the next free zram device