echo always > /sys/kernel/mm/transparent_hugepage/hugepages-64kB/enabled

tmpfile=$(mktemp)

pgfault1=$(cat /proc/vmstat  | grep pgfault | awk '{print $2}')

./test_swap > $tmpfile

pgfault2=$(cat /proc/vmstat  | grep pgfault | awk '{print $2}')

swapout=$(head -n 1 $tmpfile | awk '{print $4}')
swapin=$(tail -n 1 $tmpfile | awk '{print $4}')

cat /sys/block/zram0/mm_stat > $tmpfile

total_size=$(cat $tmpfile | awk '{print $1}')
used_size=$(cat $tmpfile | awk '{print $2}')
comp_ratio=`echo "scale=4; $total_size / $used_size" | bc`


anon_fault_alloc=$(cat /sys/kernel/mm/transparent_hugepage/hugepages-64kB/stats/anon_fault_alloc)
anon_fault_fallback=$(cat /sys/kernel/mm/transparent_hugepage/hugepages-64kB/stats/anon_fault_fallback)
anon_total=$(($anon_fault_fallback + $anon_fault_alloc))
folio_alloc_success_ratio=`echo "scale=4; $anon_fault_alloc / $anon_total" | bc`

swpout_alloc=$(cat /sys/kernel/mm/transparent_hugepage/hugepages-64kB/stats/swpout)
swpout_fault_fallback=$(cat /sys/kernel/mm/transparent_hugepage/hugepages-64kB/stats/swpout_fallback)
swpout_total=$(($swpout_fault_fallback + $swpout_alloc))
swap_success_ratio=`echo "scale=4; $swpout_alloc / $swpout_total" | bc`

echo swapout $swapout
echo swapin $swapin
echo comp_ratio $comp_ratio
echo pagefault $((pgfault2-pgfault1))
echo folio_alloc_success_ratio $folio_alloc_success_ratio
echo swap_success_ratio $swap_success_ratio

killall test_swap