'Bonnie++' is a disk IO benchmark utility that allows easy IO performance testing from command line without dependencies to other packages.
1. download the tar from this page Media:bonnie_install.tar
2. untar it in your device
3. run install_bonnie.sh as root
as root type following to start the standard test:
bonnie++ -u 0 > test_result
to view the result:
cat test_result
or if you don't need to store the result, just do
bonnie++ -u 0