Will BigArrays grows more than configed size?

Elastic Stack Elasticsearch
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  1. currently we used default value: 10% and when I heap dump one node and found out that Recycly occupied 35.38%
  2. and when I checked code, there is a overSize method.

so I'd like to confirm

  1. if it will grow more than configed value
  2. if it will, is there anywhere to control its max size?
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can anyone help to answer this?