Why does my system utilize swap space instead of freeing up cache and buffer memory?

Solution Verified - Updated -

Issue

  • Why does my system utilize swap space instead of freeing up cache and buffer memory?
  • What is the impact of scaling up and down the value of "swappiness"?
  • Why am I getting out of memory while swap is unused?
  • Why swap is not being used or under used?

Environment

  • Red Hat Enterprise Linux (RHEL) All versions

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