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#!/bin/bash -x
set -x
hugepagesize=$(cat /proc/meminfo | grep Hugepagesize | awk -F " " {'print$2'})
if [ "$hugepagesize" == "2048" ]; then
pages=1536
elif [ "$hugepagesize" == "1048576" ]; then
pages=3
fi
sudo sysctl -w vm.nr_hugepages=$pages
HUGEPAGES=`sysctl -n vm.nr_hugepages`
if [ $HUGEPAGES != $pages ]; then
echo "ERROR: Unable to get $pages hugepages, only got $HUGEPAGES. Cannot finish."
exit 1
fi
hugepageTotal=$(cat /proc/meminfo | grep -c "HugePages_Total: 0")
if [ $hugepageTotal -ne 0 ]; then
echo "HugePages_Total is zero"
exit 1
fi
hugepageFree=$(cat /proc/meminfo | grep -c "HugePages_Free: 0")
if [ $hugepageFree -ne 0 ]; then
echo "HugePages_Free is zero"
exit 1
fi
hugepageSize=$(cat /proc/meminfo | grep -c "Hugepagesize: 0 kB")
if [ $hugepageSize -ne 0 ]; then
echo "Hugepagesize is zero"
exit 1
fi
sudo mkdir /mnt/nstackhuge -p
if [ "$hugepagesize" == "2048" ]; then
sudo mount -t hugetlbfs -o pagesize=2M none /mnt/nstackhuge/
elif [ "$hugepagesize" == "1048576" ]; then
sudo mount -t hugetlbfs -o pagesize=1G none /mnt/nstackhuge/
fi
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