Add and configure 20% of memory as zram swap with a low agressive swappiness
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@ -1,3 +1,6 @@
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CONFIG_SND_SOC_WM8960=m
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# CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
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CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
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CONFIG_ZRAM=y
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CONFIG_ZSMALLOC=y
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@ -465,6 +465,7 @@ BR2_PACKAGE_UTIL_LINUX_BINARIES=y
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BR2_PACKAGE_UTIL_LINUX_HWCLOCK=y
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BR2_PACKAGE_UTIL_LINUX_KILL=y
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BR2_PACKAGE_UTIL_LINUX_MORE=y
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BR2_PACKAGE_UTIL_LINUX_ZRAMCTL=y
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BR2_PACKAGE_NANO=y
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BR2_PACKAGE_VIM=y
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# BR2_PACKAGE_VIM_RUNTIME is not set
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@ -0,0 +1 @@
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vm.swappiness = 20
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@ -0,0 +1,10 @@
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[Unit]
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Description=OVOS ZRAM swap
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Requires=zram-swap.service
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After=zram-swap.service
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[Swap]
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What=/dev/zram0
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[Install]
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WantedBy=swap.target
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@ -0,0 +1,6 @@
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[Unit]
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Description=OVOS zram targets
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Documentation=man:systemd.target(5)
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[Install]
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WantedBy=multi-user.target
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@ -0,0 +1,15 @@
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[Unit]
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Description=OVOS ZRAM swap
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DefaultDependencies=no
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Before=dev-zram0.swap
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RefuseManualStart=true
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RefuseManualStop=true
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[Service]
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Type=oneshot
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ExecStart=/usr/libexec/ovos-zram -t swap
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RemainAfterExit=true
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StandardOutput=null
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[Install]
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WantedBy=ovos-zram.target
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@ -0,0 +1,66 @@
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#!/bin/sh
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# Credits go to: https://github.com/home-assistant/operating-system/
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set -e
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#### Options ####
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TYPE=""
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MOUNT=""
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DEVICE=""
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SIZE=0
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#### Parse arguments ####
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while [ "$1" != "" ]; do
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key=$1
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case $key in
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-t|--type)
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TYPE=$2
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shift
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;;
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-s|--size)
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SIZE=$2
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shift
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;;
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-m|--mount)
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MOUNT=$2
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shift
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;;
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*)
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echo "[Error] $0 : Argument '$1' unknown"
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exit 1
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;;
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esac
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shift
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done
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# Valide Type
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if [ "$TYPE" != "swap" ]; then
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echo "[Error] Type unknown!"
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exit 1
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fi
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# Lookup device
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if [ "$TYPE" = "swap" ]; then
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DEVICE="/dev/zram0"
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#elif [ "$MOUNT" = "var" ]; then
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# DEVICE="/dev/zram1"
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#elif [ "$MOUNT" = "tmp" ]; then
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# DEVICE="/dev/zram2"
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else
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echo "[Error] No device for lookup!"
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exit 1
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fi
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# Calc 20% of memory for ZRAM swap partition
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if [ "$TYPE" = "swap" ] && [ "$SIZE" -eq "0" ]; then
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SIZE="$(awk '/MemTotal/{ print $2 * 0.20 }' /proc/meminfo)K"
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fi
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# Init device
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zramctl "$DEVICE" -s "$SIZE" -a lz4
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# Swap
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if [ "$TYPE" = "swap" ]; then
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mkswap -L "ovos-zramswap" "$DEVICE"
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fi
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