numactl implements simple NUMA policy support. A 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.