Executing ps ux returns a nice list of process information, easy to grep through or watch. However, there doesn't seem to be much flexibility in the memory usage output; the RSS (resident set size) is printed in kB, which for large processes is hard to read (especially at a glance), and %MEM gives 100 × RSS / system_memory.

The du utility has a lovely -h flag which prints space in a more user friendly fashion. I have not been able to find anything equivalent for ps. Is there a special formatting trick that can accomplish this?