52 lines
1.1 KiB
Text
52 lines
1.1 KiB
Text
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#!/bin/sh
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start() {
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exec awk -v ZRAM_SIZE=$ZRAM_SIZE -v ZRAM_PARM="$(modinfo zram | grep -E -o '(num_devices|zram_num_devices)')" '
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FILENAME == "/proc/cpuinfo" && ($1 == "processor" || $1 == "Processor") {
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cpucount++
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next
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}
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FILENAME == "/proc/meminfo" && $1 == "MemTotal:" {
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if (ZRAM_SIZE == "")
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ZRAM_SIZE = 20
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mem_total = int( (0 + $2) * 1024 * ( ZRAM_SIZE/100 ) )
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next
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}
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END {
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mem_per_cpu = int(mem_total / cpucount)
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system("modprobe zram "ZRAM_PARM"=" cpucount)
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for (i = 0; i < cpucount; i++) {
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print mem_per_cpu > "/sys/block/zram" i "/disksize"
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print "lz4" > "/sys/block/zram" i "/comp_algorithm"
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system("mkswap /dev/zram" i " -L zram" i)
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swapdevs = swapdevs " /dev/zram" i
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}
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system("swapon -p 100" swapdevs)
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}
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' /proc/cpuinfo /proc/meminfo
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}
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stop() {
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exec awk '
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FNR > 1 && $1 ~ /^\/dev\/zram[0-9]+$/ {
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activeswaps = activeswaps " " $1
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}
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END {
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system("swapoff" activeswaps)
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system("rmmod zram")
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}
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' /proc/swaps
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}
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case $1 in
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start|stop) "$1" ;;
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esac
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