desktop/zramswap/zramstart
2014-10-28 23:25:22 +00:00

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#!/bin/sh
num_cpus=$(grep -c processor /proc/cpuinfo)
[ "$num_cpus" != 0 ] || num_cpus=1
last_cpu=$((num_cpus - 1))
FACTOR=90
[ -f /etc/default/zram ] && source /etc/default/zram || true
factor=$FACTOR # percentage
memtotal=$(grep MemTotal /proc/meminfo | awk ' { print $2 } ')
mem_by_cpu=$(($memtotal/$num_cpus*$factor/100*1024))
modprobe -q zram num_devices=$num_cpus
for i in $(seq 0 $last_cpu); do
echo $mem_by_cpu > /sys/block/zram$i/disksize
mkswap /dev/zram$i
swapon -p 100 /dev/zram$i
done