3 # Simple script to perform various random writes to files in a directory to
4 # create a workload for the cleaner.
12 for n in $(seq 0 $(($NUM_FILES - 1))); do
13 [ -f file-$n ] || dd if=/dev/zero of=file-$n bs=$BLOCKSIZE count=$NUM_BLOCKS
16 for i in $(seq $NUM_WRITES); do
17 f=$(($RANDOM % $NUM_FILES))
18 b=$(($RANDOM % $NUM_BLOCKS))
19 echo "Write $i: file $f block $b"
20 dd if=/dev/zero of=file-$f bs=$BLOCKSIZE count=1 seek=$b conv=notrunc