Disable THP via MADV_NOHUGEPAGE

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    • Type: Improvement
    • Resolution: Unresolved
    • Priority: Major - P3
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    • Affects Version/s: None
    • Component/s: Storage
    • Workload Scheduling
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    • 3
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      Calling madvise() with MADV_NOHUGEPAGE (added in Linux 2.6.38) would allow MongoDB to effectively mark regions unsuited for transparent hugepages. On 3.15 kernels and above we can use PR_SET_THP_DISABLE to disable THP process-wide.

      This approach should be more effective than simply instructing users to disable THP via warnings.

              Assignee:
              Unassigned
              Reporter:
              Achille Brighton (Inactive)
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                Created:
                Updated: