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Stats & COMP_ALG #2

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Stats & COMP_ALG #2

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6a18a5c
fixed for new stats since 4.1 kernel
Apr 14, 2018
7976cfb
add COMP_ALG option
Apr 14, 2018
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4 changes: 4 additions & 0 deletions zram
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Original file line number Diff line number Diff line change
Expand Up @@ -2,3 +2,7 @@
# of system RAM to allocate to ZRAM block devices
# Too big, and your system will start killing off processes
FACTOR=33

# Compression method listed in /sys/block/zram0/comp_algorithm
# Set to empty to stay with default
COMP_ALG=lzo
2 changes: 2 additions & 0 deletions zramstart
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Expand Up @@ -15,7 +15,9 @@ mem_by_cpu=$(($memtotal/$num_cpus*$factor/100*1024))
modprobe -q zram num_devices=$num_cpus

for i in $(seq 0 $last_cpu); do
[ -z $COMP_ALG ] || echo $COMP_ALG > /sys/block/zram$i/comp_algorithm
echo $mem_by_cpu > /sys/block/zram$i/disksize

mkswap /dev/zram$i
swapon -p 100 /dev/zram$i
done
3 changes: 1 addition & 2 deletions zramstat
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Expand Up @@ -3,8 +3,7 @@
ls /sys/block/zram* > /dev/null 2>&1 || exit 0

for i in /sys/block/zram*; do
compr=$(< $i/compr_data_size)
orig=$(< $i/orig_data_size)
read orig compr rest < $i/mm_stat
ratio=0
if [ $compr -gt 0 ]; then
ratio=$(echo "scale=2; $orig*100/$compr" | bc -q)
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