RBD Fio Testing

#!/bin/bash
# folder to place logs
logging_folder=/root/fio_testing
mkdir -p "$output_folder"

# use all mapped RBDs in the specified pool with the specified prefix
pool=rbd
rbd_prefix=test
rbds=$(echo $(ls /dev/rbd/${pool}/${rbd_prefix}*) | sed 's/ /:/g')

# values to loop over to test all combinations of the specified settings
blocksizes="4 16 64 128"
iodepths="1 4 16 128"
numjobs="1 4 16 128"
ramp_time=60
runtime=300

for bs in $blocksizes; do
  for iodepth in $iodepths; do
    for numjob in $numjobs; do
# Number of tests to run with each combination of settings
      for i in {1..12}; do
        run=${bs}kRandWriteIO${iodepth}J${numjob}-run${i}
        echo
        echo "starting: $run"
        fio --filename=$rbds --direct=1 --ioengine=libaio --bs=${bs}k --rw=randwrite --iodepth=$iodepth --numjobs=$numjob --ramp_time=$ramp_time --runtime=$runtime --group_reporting --name=$run --output=${logging_folder}/${run}
        sleep 3
      done
    done
  done
done