numactl implements simple NUMA policy support. NUMA policy allows you to tune programs by controlling the placement of memory in NUMA (Non Uniform Memory Access) systems.
The numactl program runs other programs with a specific NUMA policy, and the libnuma shared library ("NUMA API") can be used to set NUMA policy in applications.
Libnuma is the preferred interface to the Linux kernel NUMA policy system calls. The package also has various tools, like numastat to decode the kernel NUMA statistics.
What's New in This Release:
· numa_exit_on_warn was added.
· copy_bitmask_to_bitmask() was added to numa.h.
· versions.ldscript was added to libnuma.so dependencies.
· "numa_all_cpus" was added from numa.h.
· Symlinks were added for the manpages of all new functions.
· No cpuset fallback in libnuma.c, line reading in proc, numaif.h and numaint.h, Makefile and permissions, and static internal libnuma functions were fixed.
· non-"numa_" functions were removed from numacompat1.h and numa.h.
· Various numademo improvements were made.
· VERSION1_COMPATIBILITY was changed to NUMA_VERSION1_COMPATIBILITY.
· LIBNUMA_API_VERSION 2 was defined in numa.h.
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What's New in This Release: [ read full changelog ]
· Correct numa_max_node() use of broken numa_num_configured_nodes() (Tim Pepper)
· Use numa_max_node() not numa_num_configured_nodes() (Tim Pepper)
· Fix numa_num_configured_nodes() to match man page description (Tim Pepper)
· Clarify comment for numa_all_nodes_ptr extern (Tim Pepper)
· numactl --hardware should handle sparse node numbering (Tim Pepper)
· Maintain compatibility with 2.0.3 numa_num_thread...()'s (Cliff W.)
· numa_num_task_cpus()/..nodes() to return actual counts (Cliff W.)
· Fix numa_get_run_node_mask() to return a cpuset-aware node mask (Cliff W.)
· Add a better warning to numa_node_to_cpus()
· Fix numa_get_mems_allowed() to use MPOL_F_MEMS_ALLOWED (Michael Spiegel)
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