Storm performance

Test(Spout -> AddTime -> Splitter -> pair -> sum -> sink) runs one one node. Whether the node is configured to run only one worker or 4 workers. The test performances are similar. Emit of spout: One worker(4 works/node) 30s 16980 60s 56540 90s 93820 120s 130940 150s 171420

1 worker(one worker/node) 30s 17520 60s 58140 90s 93340 120s 131880 150s 170940

Two workers(one worker/node) 30s 24640 60s 72780 90s 130160 120s 169100 150s 222280