Github user mjsax commented on the pull request:

    https://github.com/apache/storm/pull/765#issuecomment-148540526
  
    I had a look at the numbers. It's a lot of stuff and hard to parse for 
me... I am not sure what you mean by "contradict the numbers"? Can you explain 
in more detail?
    
    However, I agree with your thought about STORM-855 #694 It basically 
reduces the contention on the output queue, because less calls are made here. I 
profiled Storm once and observed that on high-end data-rates (when we hit the 
wall) the contention on the output-queue is the bottleneck (the writing and 
reading thread have to lock the queue and a lot of waiting for the lock 
consumes a fair share of the consumed time).


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