diff options
Diffstat (limited to 'man2/set_mempolicy.2')
| -rw-r--r-- | man2/set_mempolicy.2 | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/man2/set_mempolicy.2 b/man2/set_mempolicy.2 index fc3ad9df8..f1f225e32 100644 --- a/man2/set_mempolicy.2 +++ b/man2/set_mempolicy.2 @@ -63,6 +63,7 @@ argument must specify one of .BR MPOL_DEFAULT , .BR MPOL_BIND , .BR MPOL_INTERLEAVE , +.BR MPOL_WEIGHTED_INTERLEAVE , .BR MPOL_PREFERRED , or .B MPOL_LOCAL @@ -199,6 +200,23 @@ the memory bandwidth of a single node. .\" To be effective the memory area should be fairly large, .\" at least 1 MB or bigger. .TP +.BR MPOL_WEIGHTED_INTERLEAVE " (since Linux 6.9)" +.\" commit fa3bea4e1f8202d787709b7e3654eb0a99aed758 +This mode interleaves page allocations across the nodes specified in +.I nodemask +according to the weights in +.IR /sys/kernel/mm/mempolicy/weighted_interleave . +For example, if bits 0, 2, and 5 are set in +.IR nodemask , +and the contents of +.IR /sys/kernel/mm/mempolicy/weighted_interleave/node0 , +.IR /sys/ .\|.\|. /node2 , +and +.IR /sys/ .\|.\|. /node5 +are 4, 7, and 9, respectively, +then pages in this region will be allocated on nodes 0, 2, and 5 +in a 4:7:9 ratio. +.TP .B MPOL_PREFERRED This mode sets the preferred node for allocation. The kernel will try to allocate pages from this node first |