Elasticsearch 5.0.1 virtual memory overflow

I am using ElasticSearch 5.0.1 with Xmx and Xms as 8GB on a Linux machine. The main memory usage is under control but the virtual memory usage is around 420GB for ElasticSearch process. Custom properties set under elasticsearch.yml are bootstrap.memory_lock: true and bootstrap.seccomp: false. Can this high usage of virtual memory impact the query and index performance of ElasticSearch? If yes, then how can I reduce the size and usage of virtual memory?

Using a lot of virtual memory is fine. See http://blog.thetaphi.de/2012/07/use-lucenes-mmapdirectory-on-64bit.html.

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