How to determine the time required for dumping a vmcore file with kdump?

Solution Verified - Updated -

Issue

  • How to determine the time for dumping a vmcore file with kdump?
  • How much time would be needed to dump the whole content of memory on a specific system configuration?
  • For how long time should wait for kdump to dump the vmcore file.
  • How long does it take to generate a vmcore?

Environment

  • Red Hat Enterprise Linux (RHEL) 5, 6, 7
  • Kdump

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