Zswap extends the amount of usable ram one has. It does this by utilizing compressed zram block devices.It is not related to the kernel zswap module!
Zswap defaults to use a single multithreaded lzo compressed half-ram swap disk Edit the following parameters in zswap.sh to configure zswap:
Parameter Usage | Example ------------|-------------------------------------------|--------------- size | Set the size a block device(K,M,G) | size=(1G) algo | Set the compression algorithm (lzo|lz4) | algo=(lzo) threads | Set the # of threads to compress with | threads=(2) num_devices | Set the # of swap devices from zswap | num_devices=1
Use the following commands to control zswap:
| Command | Usage |
|---|---|
| zswap.sh start | Start zswap |
| zswap.sh stop | Stop zswap |
| zswap.sh restart | Restart zswap |
| systemctl enable zswap | Start zswap on boot using systemd |
| systemctl start zswap | Start zswap using systemd |
| systemctl stop zswap | Stop zswap using systemd |
| systemctl restart zswap | Restart zswap using systemd |