echo performance > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu2/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu3/cpufreq/scaling_governor
mkfs -t btrfs /dev/sda1
mount -t btrfs /dev/sda1 /fs/sda1
cd /fs/sda1
sysbench --test=fileio --max-requests=0 --num-threads=4 --max-time=600 --file-test-mode=rndrw --file-total-size=68719476736 --file-io-mode=sync --file-num=1024 prepare
sysbench --test=fileio --max-requests=0 --num-threads=4 --max-time=600 --file-test-mode=rndrw --file-total-size=68719476736 --file-io-mode=sync --file-num=1024 run