Why does the command "lsof" run very slowly and consume high cpu

Solution Verified - Updated -

Issue

  • Executing lsof takes a very long time (up to several minutes)

  • Executing lsof consumes an entire CPU for a very long time

  • Executing lsof consumes several gigabytes of memory

Environment

  • Red Hat Enterprise Linux 7

    • lsof-4.87-6.el7 and later

  • Red Hat Enterprise Linux 8 and later

    • lsof

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