Local mode is quite different from how distributed mode would work. I would 
suggest that you create a distributed setup(with even a few nodes is enough) - 
Running a Multi-Node Storm Cluster - Michael G. Noll -  and then profile the 
individual workers to find what is consuming the most CPU (which I'm assuming 
is your intention).

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Running a Multi-Node Storm Cluster - Michael G. Noll

Michael G. Noll

Setting up a distributed Storm cluster on RHEL 6 with process supervision



On Thursday, August 10, 2017, 3:24:25 AM CDT, shawn.du 
<shawn...@neulion.com.cn> wrote:

#yiv6219386171 font{line-height:1.5;} Hi,
We are replaying our data on Local mode storm cluster. Using jvisualvm, we find 
most CPU are used by following methods (about 60% CPU time):
Is there any approaches to optimize the performance?
 #yiv6219386171 a#yiv6219386171ntes-pcmail-signature-default:hover 
{text-decoration:underline;color:#3593db;cursor:pointer;}   #yiv6219386171 

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