dmsetup remove_all wipefs -a --force /dev/sdc1 mkfs -t btrfs /dev/sdc1 mkdir -p /fs/sdc1 mount -t btrfs /dev/sdc1 /fs/sdc1 mkdir -p /cifs/sdc1 timeout 5m mount -t cifs -o user=root,password=pass //localhost/fs/sdc1 /cifs/sdc1 sync echo 3 > /proc/sys/vm/drop_caches for cpu_dir in /sys/devices/system/cpu/cpu[0-9]* do online_file="$cpu_dir"/online [ -f "$online_file" ] && [ "$(cat "$online_file")" -eq 0 ] && continue file="$cpu_dir"/cpufreq/scaling_governor [ -f "$file" ] && echo "performance" > "$file" done filebench -f /lkp/benchmarks/filebench/share/filebench/workloads/randomrw.f sleep 100 rm -rf /cifs/sdc1/largefile1