extend existing THP warning to THP defrag setting

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    • Type: Improvement
    • Resolution: Done
    • Priority: Major - P3
    • 3.0.0-rc6
    • Affects Version/s: 2.8.0-rc3
    • Component/s: Admin, Performance
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    • Fully Compatible
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    • 3
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      We currently check certain system parameters at start-up including high read-ahead and transparent huge pages.

      It turns out even if THP are disabled (enabled set to [never]) if defrag is "always" then it impacts mongod when Linux defrags the pages. We should extend the check and the warning to /sys/kernel/mm/transparent_hugepage/defrag

            Assignee:
            Benety Goh
            Reporter:
            Asya Kamsky
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              Created:
              Updated:
              Resolved: