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zram

modprobe zram
# zramctl
apk add util-linux-misc
zramctl /dev/zram0 --algorithm zstd --size 32G

# 可以用来做 swap - 减少内存使用
# 确保关闭 zswap
mkswap -U clear /dev/zram0
swapon --priority 100 /dev/zram0


echo zaram | tee -a /etc/modules-load.d/zram.conf

# https://github.com/vaeth/zram-init
apk add zram-init
ACTION=="add", KERNEL=="zram0", ATTR{comp_algorithm}="zstd", ATTR{disksize}="4G", RUN="/usr/bin/mkswap -U clear /dev/%k", TAG+="systemd"
/dev/zram0 none swap defaults,pri=100 0 0