admin-guide/mm/transhuge.rst

69 interface and using madvise(2) and prctl(2) system calls.
92 MADV_HUGEPAGE madvise regions.
94 Embedded systems should enable hugepages only inside madvise regions
100 madvise(MADV_HUGEPAGE) on their critical mmapped regions.
116 	echo madvise >/sys/kernel/mm/transparent_hugepage/hugepages-<size>kB/enabled
139 	echo madvise >/sys/kernel/mm/transparent_hugepage/enabled
148 anonymous hugepages in case they're not immediately free to madvise
160 	echo defer+madvise >/sys/kernel/mm/transparent_hugepage/defrag
161 	echo madvise >/sys/kernel/mm/transparent_hugepage/defrag
177 defer+madvise
179 	only for regions that have used madvise(MADV_HUGEPAGE); all
184 madvise
186 	that are have used madvise(MADV_HUGEPAGE). This is the default
217 to "always" or "madvise"), and it'll be automatically shutdown when
302 ``transparent_hugepage=madvise`` or ``transparent_hugepage=never`` to the
308 supported anonymous THP)  and ``<state>`` is one of ``always``, ``madvise``,
312 set 128K, 512K to ``inherit``, set 256K to ``madvise`` and 1M, 2M
315 	thp_anon=16K-64K:always;128K,512K:inherit;256K:madvise;1M-2M:never
343     Also respect fadvise()/madvise() hints;
346     Only allocate huge pages if requested with fadvise()/madvise();
388     Also respect fadvise()/madvise() hints;
391     Only allocate <size> huge pages if requested with fadvise()/madvise();