Shared memory created via /dev/shm does not report under "used" field in "free" command output

Solution Verified - Updated -

Issue

  • Shared memory is high, used memory does not reflect shared memory usage.
  • Why the available memory showing less value when there is not much "used" in free command.
  • Memory reporting is not accurate in "free" command

Environment

  • Red Hat Enterprise Linux 8

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