[GitHub] storm issue #2853: STORM-2963 Adding notes on GC to Performance.md

[HeartSaVioR]

Github user HeartSaVioR commented on the issue:

    https://github.com/apache/storm/pull/2853
  
    @roshannaik No worries. Please comment when you're done. Adding `WIP` would 
be also good to determine in this case.


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