local ref2=$dir0/ref2
local file1=$dir0/file1
local file2=$dir0/file2
- # create a file large enough for the concurent test
+ # create a file large enough for the concurrent test
dd if=/dev/urandom of=$ref1 bs=1M count=$((RANDOM % 50 + 20))
dd if=/dev/urandom of=$ref2 bs=1M count=$((RANDOM % 50 + 20))
echo "ref file size: ref1($(stat -c %s $ref1))," \