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20 lines
578 B
Bash
Executable File
20 lines
578 B
Bash
Executable File
#!/usr/bin/env bash
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# RT control procs (controlsd/card) mlockall their pages, so they are never swapped.
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set -e
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[ -e /sys/class/zram-control ] || exit 0
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grep -q "zram0" /proc/swaps 2>/dev/null && exit 0
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DISKSIZE="${ZRAM_DISKSIZE:-2G}"
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echo lzo > /sys/block/zram0/comp_algorithm 2>/dev/null || true
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echo "$DISKSIZE" > /sys/block/zram0/disksize
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mkswap /dev/zram0 >/dev/null 2>&1
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swapon -p 100 /dev/zram0
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sysctl -q vm.swappiness=100 2>/dev/null || true
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sysctl -q vm.page-cluster=0 2>/dev/null || true
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echo "zram: $(free -m | awk '/Swap/{print $2}')MB compressed swap active"
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