Lines Matching +full:non +full:- +full:contiguous
13 256M and ppc64 supports 4K and 16M. A TLB is a cache of virtual-to-physical
93 Once a number of huge pages have been pre-allocated to the kernel huge page
169 indicates the current number of pre-allocated huge pages of the default size.
180 task that modifies ``nr_hugepages``. The default for the allowed nodes--when the
181 task has default memory policy--is all on-line nodes with memory. Allowed
182 nodes with insufficient available, contiguous memory for a huge page will be
189 physically contiguous memory that is present in system at the time of the
192 allocating extra pages on other nodes with sufficient available contiguous
197 the boot process when the possibility of getting physical contiguous pages
206 requested by applications. Writing any non-zero value into this file
226 of the in-use huge pages to surplus huge pages. This will occur even if
228 this condition holds--that is, until ``nr_hugepages+nr_overcommit_hugepages`` is
229 increased sufficiently, or the surplus huge pages go out of use and are freed--
232 With support for multiple huge page pools at run-time available, much of
243 hugepages-${size}kB
280 demote_size) function as described above for the default huge page-sized case.
297 numactl --interleave <node-list> echo 20 \
302 numactl -m <node-list> echo 20 >/proc/sys/vm/nr_hugepages_mempolicy
304 This will allocate or free ``abs(20 - nr_hugepages)`` to or from the nodes
305 specified in <node-list>, depending on whether number of persistent huge pages
307 allocated nor freed on any node not included in the specified <node-list>.
310 memory policy mode--bind, preferred, local or interleave--may be used. The
314 Documentation/admin-guide/mm/numa_memory_policy.rst],
317 However, if a node in the policy does not contain sufficient contiguous
319 neighbor node with sufficient contiguous memory. To do this would cause
334 #. The nodes allowed mask will be derived from any non-default task mempolicy,
337 shell with non-default policy, that policy will be used. One can specify a
338 node list of "all" with numactl --interleave or --membind [-m] to achieve
341 #. Any task mempolicy specified--e.g., using numactl--will be constrained by
343 be no way for a task with non-default policy running in a cpuset with a
347 #. Boot-time huge page allocation attempts to distribute the requested number
348 of huge pages over all on-lines nodes with memory.
357 /sys/devices/system/node/node[0-9]*/hugepages/
366 The free\_' and surplus\_' attribute files are read-only. They return the number
379 The hugetlb may be migrated between the per-node hugepages pool in the following
384 hugetlb migration, that means these 3 cases can break the per-node hugepages pool.
395 mount -t hugetlbfs \
396 -o uid=<value>,gid=<value>,mode=<value>,pagesize=<value>,size=<value>,\
471 ``hugepage-shm``
472 see tools/testing/selftests/mm/hugepage-shm.c
474 ``hugepage-mmap``
475 see tools/testing/selftests/mm/hugepage-mmap.c