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July 1, 2025 10:58
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install zram and zswap to Ubuntu automatically
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#!/usr/bin/env bash | |
set -e | |
echo "==> Установка zram-tools и необходимых утилит" | |
apt update | |
apt install -y zram-tools linux-tools-common linux-tools-generic systemd-zram-generator | |
echo "==> Настройка ZRAM через systemd-zram-generator" | |
cat <<EOF > /etc/systemd/zram-generator.conf | |
[zram0] | |
zram-size = ram * 0.5 | |
compression-algorithm = zstd | |
swap-priority = 100 | |
EOF | |
echo "==> Применение конфигурации ZRAM" | |
systemctl daemon-reexec | |
systemctl start systemd-zram-setup@zram0 | |
echo "==> Проверка активности ZRAM" | |
swapon --show | |
echo "==> Включение ZSWAP с zstd и лимитом в 20%" | |
# Добавляем параметры ядра в GRUB | |
GRUB_FILE="/etc/default/grub" | |
ZSWAP_PARAMS="zswap.enabled=1 zswap.compressor=zstd zswap.max_pool_percent=20" | |
if ! grep -q "$ZSWAP_PARAMS" "$GRUB_FILE"; then | |
sed -i "s/GRUB_CMDLINE_LINUX_DEFAULT=\"\(.*\)\"/GRUB_CMDLINE_LINUX_DEFAULT=\"\1 $ZSWAP_PARAMS\"/" "$GRUB_FILE" | |
echo "==> Обновление GRUB" | |
update-grub | |
else | |
echo "==> Параметры ZSWAP уже добавлены в GRUB" | |
fi | |
echo "==> Немедленное включение ZSWAP без перезагрузки" | |
echo 1 | tee /sys/module/zswap/parameters/enabled | |
echo zstd | tee /sys/module/zswap/parameters/compressor | |
echo 20 | tee /sys/module/zswap/parameters/max_pool_percent | |
echo "==> Проверка ZSWAP:" | |
echo -n "ZSWAP enabled: "; cat /sys/module/zswap/parameters/enabled | |
echo -n "Compressor: "; cat /sys/module/zswap/parameters/compressor | |
echo -n "Pool max %: "; cat /sys/module/zswap/parameters/max_pool_percent | |
echo "==> Настройка завершена. Перезагрузите систему для применения параметров ядра." |
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