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.

Environment

  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Kdump

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