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I would like to use a linux version in which only 2MB pages are used (i.e., no libhugetlbfs and transparent huge pages). From other similar questions (e.g., Linux use huge pages only), I understood that it is not possible using the current kernel version.

I am really interested in doing this, and I will try to modify the kernel to do it. Can you give me some advices in order to create a very minimal kernel version in which only 2MB page are used?

rrpp1045
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  • Maybe you would want to ask another question first: ***Why** is it currently not possible?* That would adjust your expectations, I think. – Marcus Müller Jun 03 '23 at 19:00
  • I work on the memory subsystem, and this isn't possible. I can't even imagine why someone would want to do this outside of hugepage merging considering the huge costs of wrong LRU decisions, cache pollution, and fragmentation. – Chris Down Jun 03 '23 at 20:08
  • @ChrisDown why it is not possible? Assuming that I do not want to worry about the problems you mentioned (e.g., I have enough memory to handle fragmentation). what are the current limitations that would not allow this solution? – rrpp1045 Jun 03 '23 at 23:15

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