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10 supported platforms with Non-Uniform Memory Access architectures since 2.4.?.
16 (``Documentation/admin-guide/cgroup-v1/cpusets.rst``)
19 programming interface that a NUMA-aware application can take advantage of. When
28 ------------------------
41 not to overload the initial boot node with boot-time
45 this is an optional, per-task policy. When defined for a
61 In a multi-threaded task, task policies apply only to the thread
98 mapping-- i.e., at Copy-On-Write.
101 virtual address space--a.k.a. threads--independent of when
106 are NOT inheritable across exec(). Thus, only NUMA-aware
109 * A task may install a new VMA policy on a sub-range of a
126 policies--using the mbind() system call specifying a range of
138 support allocation at fault time--a.k.a lazy allocation--so hugetlbfs
161 -----------------------------
175 Default Mode--MPOL_DEFAULT
178 policy scopes. Any existing non-default policy will simply be
191 be non-empty.
206 Internally, the Preferred policy uses a single node--the
215 is always preferred by passing an empty nodemask with this
216 mode. If an empty nodemask is passed, the policy cannot use
275 With this flag, if the user-specified nodes overlap with the
281 mems 1-3 that sets an Interleave policy over the same set. If
282 the cpuset's mems change to 3-5, the Interleave will now occur
290 MPOL_PREFERRED policies that were created with an empty nodemask
296 set of allowed nodes. The kernel stores the user-passed nodemask,
306 1,3,5 may be remapped to 7-9 and then to 1-3 if the set of
319 the user's nodemask when the set of allowed nodes is only 0-3),
324 mems 2-5 that sets an Interleave policy over the same set with
325 MPOL_F_RELATIVE_NODES. If the cpuset's mems change to 3-7, the
326 interleave now occurs over nodes 3,5-7. If the cpuset's mems
327 then change to 0,2-3,5, then the interleave occurs over nodes
328 0,2-3,5.
334 memory nodes 0 to N-1, where N is the number of memory nodes the
341 MPOL_PREFERRED policies that were created with an empty nodemask
359 During run-time "usage" of the policy, we attempt to minimize atomic operations
400 used for non-shared policies. For this reason, shared policies are marked
401 as such, and the extra reference is dropped "conditionally"--i.e., only
495 The numactl(8) tool is packaged with the run-time version of the library
497 package the headers and compile-time libraries in a separate development
511 result is the empty set, the policy is considered invalid and cannot be