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  • Without the proposed change, in stream mode, with each of sources generating 2*10^6 records, average execution time is 56 sec.
  • Without the proposed change, in batch mode, with each of sources generating 5*10^7 records, average execution time is 118 sec.
  • With the proposed change, in both the stream and batch mode, with each of sources generating 5*10^7 records,  average execution time is 38 46 sec.

This show that the same DataStream program in stream mode can be more than 20X faster with proposed change.

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