There is an error in the blog posting. If you look at the original output from the rsync command, you will see that the elapsed time should be 12.42 seconds an

There is an error in the blog posting. If you look at the original output from the rsync command, you will see that the elapsed time should be 12.42 seconds and the system time should be 10.60 seconds. Elapsed time is a third that of rm -rf and system time is 70% as much.