On 22.07.25 09:20, David Hildenbrand wrote:
On 21.07.25 17:55, Lorenzo Stoakes wrote:
Rather confusingly, setting all Transparent Huge Page sysfs settings to
"never" does not in fact result in THP being globally disabled.
Rather, it results in khugepaged being disabled, but one can still obtain
THP pages using madvise(..., MADV_COLLAPSE).
This is something that has remained poorly documented for some time, and it
is likely the received wisdom of most users of THP that never does, in
fact, mean never.
It is therefore important to highlight, very clearly, that this is not the
ase.
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@xxxxxxxxxx>
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Can we also somehow tone down or clarify the "entirely disabled"?
Ah, missed that you touched that already.
Acked-by: David Hildenbrand <david@xxxxxxxxxx>
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Cheers,
David / dhildenb
