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Editorial Team
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Asked: 2026-06-10T07:27:00+00:00

Does the Linux on x86-64 support multiple huge page sizes (e.g., both 2MB and

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Does the Linux on x86-64 support multiple huge page sizes (e.g., both 2MB and 1GB page sizes beyond the 4KB base page size)? If yes, is there a way to specify that for a given allocation which huge page size to use? In other words, my question is if “MAP_HUGETLB” flag is used while doing mmap() it maps them allocation to hugepages of default size. Is there anyway to request an allocation to be mapped on to non-default hugepage size?

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1 Answer

  1. Editorial Team

    Not quite yet, but it’s working its way through the LKML. At a guess, the feature will be available in a few releases time.

    You will then be able to use the flags MAP_HUGE_2MB and MAP_HUGE_1GB to configure this explicitly.

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