On 21 Jul 2025, at 11:55, 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> > --- > Documentation/admin-guide/mm/transhuge.rst | 11 +++++++++-- > 1 file changed, 9 insertions(+), 2 deletions(-) > LGTM. Reviewed-by: Zi Yan <ziy@xxxxxxxxxx> Best Regards, Yan, Zi
