Wa[is]ting or not wa[is]ting in ISpout.nextTuple()

[Harald Kirsch]

Hi

straight from the docs at 
http://nathanmarz.github.io/storm/doc/backtype/storm/spout/ISpout.html#nextTuple%28%29

"When there are no tuples to emit, it is courteous to have nextTuple 
sleep for a short amount of time (like a single millisecond) so as not 
to waste too much CPU."

Is this still current, or are there better ways to wait and not waste 
CPU cycles?

Regards,
Harald.