Compression ratio when makedumpfile compresses dump data

Solution Unverified - Updated -

Issue

  • I see kdump runs makedumpfile with -c option in /etc/kdump.conf.
path /var/crash
core_collector makedumpfile -c --message-level 1 -d 31

  • Looking at this knowledge base article I understand the compression ratio achieved using the "-c" option is entirely dependent on the content stored in RAM.

  • How much range of compression ratio can I expect?

Environment

  • Red Hat Enterprise Linux All

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