diff options
| author | Yafang Shao <laoar.shao@gmail.com> | 2023-12-08 09:05:53 +0000 |
|---|---|---|
| committer | Alejandro Colomar <alx@kernel.org> | 2023-12-09 12:35:26 +0100 |
| commit | 1a7dfea42049006c7faf6ff72fd1b84d0add4344 (patch) | |
| tree | dbd7f5f43d649737c82eafd56fcdeaaf7523a5ff | |
| parent | 8c3bd620bca7de41c9d3e28d73f09ec88fd52a86 (diff) | |
mbind.2: Add mode flag MPOL_F_NUMA_BALANCING
In Linux Kernel 5.12, a new mode flag, MPOL_F_NUMA_BALANCING, was
added to set_mempolicy() to optimize the page placement among the
NUMA nodes with the NUMA balancing mechanism even if the memory of
the applications is bound with MPOL_BIND.
In Linux Kernel 5.15, this mode flag was extended to mbind(2). Let's
also add man-page for mbind(2). It is copied from set_mempoicy(2)
man-page with subtle modifications.
Related kernel commits:
bda420b985054a3badafef23807c4b4fa38a3dff
6d2aec9e123bb9c49cb5c7fc654f25f81e688e8c
Suggested-by: "Huang, Ying" <ying.huang@intel.com>
Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
| -rw-r--r-- | man2/mbind.2 | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/man2/mbind.2 b/man2/mbind.2 index 7dd1e856a..b0e961f9c 100644 --- a/man2/mbind.2 +++ b/man2/mbind.2 @@ -124,6 +124,23 @@ The supported .I "mode flags" are: .TP +.BR MPOL_F_NUMA_BALANCING " (since Linux 5.15)" +.\" commit bda420b985054a3badafef23807c4b4fa38a3dff +.\" commit 6d2aec9e123bb9c49cb5c7fc654f25f81e688e8c +When +.I mode +is +.BR MPOL_BIND , +enable the kernel NUMA balancing for the task if it is supported by the kernel. +If the flag isn't supported by the kernel, or is used with +.I mode +other than +.BR MPOL_BIND , +\-1 is returned and +.I errno +is set to +.BR EINVAL . +.TP .BR MPOL_F_STATIC_NODES " (since Linux-2.6.26)" A nonempty .I nodemask |