diff options
Diffstat (limited to 'Documentation/admin-guide/mm/numa_memory_policy.rst')
| -rw-r--r-- | Documentation/admin-guide/mm/numa_memory_policy.rst | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/Documentation/admin-guide/mm/numa_memory_policy.rst b/Documentation/admin-guide/mm/numa_memory_policy.rst index 46515ad2337f..a70f20ce1ffb 100644 --- a/Documentation/admin-guide/mm/numa_memory_policy.rst +++ b/Documentation/admin-guide/mm/numa_memory_policy.rst @@ -109,7 +109,7 @@ VMA Policy * A task may install a new VMA policy on a sub-range of a previously mmap()ed region. When this happens, Linux splits the existing virtual memory area into 2 or 3 VMAs, each with - it's own policy. + its own policy. * By default, VMA policy applies only to pages allocated after the policy is installed. Any pages already faulted into the @@ -250,6 +250,15 @@ MPOL_PREFERRED_MANY can fall back to all existing numa nodes. This is effectively MPOL_PREFERRED allowed for a mask rather than a single node. +MPOL_WEIGHTED_INTERLEAVE + This mode operates the same as MPOL_INTERLEAVE, except that + interleaving behavior is executed based on weights set in + /sys/kernel/mm/mempolicy/weighted_interleave/ + + Weighted interleave allocates pages on nodes according to a + weight. For example if nodes [0,1] are weighted [5,2], 5 pages + will be allocated on node0 for every 2 pages allocated on node1. + NUMA memory policy supports the following optional mode flags: MPOL_F_STATIC_NODES |