Benchmark MongDB on different filesystems

bench.sh

formatDrives() {
  mkfs.ext4 /dev/sdc
  mkfs.xfs /dev/sdd
}

createZFS () {
  sleep 30
  zpool destroy tank
  zpool create -f -m /zfs tank /dev/sde 
  if [ $1 ]; then
    zfs set $1 tank
  fi
}

createZFSOption () {
  sleep 30
  zpool destroy tank
  zpool create -f -m /zfs tank /dev/sde -o $1
}

runBenchmark () {
  mkdir -p results/$1$2
  ./run.simple.bash
  echo -e "\n$1$2" >> results.txt
  tail -n 1 mongoSysbenchLoad-16-1000000-8.txt.tsv | awk '{ print $3 }' >> results.txt
  tail -n 1 mongoSysbenchExecute-16-1000000-64.txt.tsv | awk '{ print $2 }' >> results.txt
  mv mongoSysbench* results/$1$2
}

startMongo () {
  mongod --directoryperdb --dbpath $1 > /dev/null 2>&1 &
  sleep 5
  mongo sbtest --eval "printjson(db.dropDatabase())"
  runBenchmark $1 $2
  killall mongod
}

runTests () {
  # formatDrives
  createZFS
  startMongo /ext4
  startMongo /xfs
  startMongo /zfs
  createZFS recordsize=8K
  startMongo /zfs 8
  createZFS recordsize=64K
  startMongo /zfs 64
  createZFS compression=lz4
  startMongo /zfs lz4
  createZFS compression=gzip
  startMongo /zfs gzip
  createZFSOption ashift=9
  startMongo /zfs ashift9
  createZFSOption ashift=12
  startMongo /zfs ashift12
}

mkdir runs
for i in $(seq 1 10)
do
  echo -e "Test $i" >> results.txt
  runTests
  mv results runs/results$i
  echo -e "\n\n" >> results.txt
done