KZALLOC_NODE(9) Memory Management in Linux KZALLOC_NODE(9)NAME
kzalloc_node - allocate zeroed memory from a particular memory node.
void * kzalloc_node(size_t size, gfp_t flags, int node);
how many bytes of memory are required.
the type of memory to allocate (see kmalloc).
memory node from which to allocate
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 KZALLOC_NODE(9)
Check Out this Related Man Page
NUMACTL(8) Linux Administrator's Manual NUMACTL(8)NAME
numastat - Print statistics about NUMA memory allocation
numastat displays NUMA allocations statistics from the kernel memory allocator. Each process has NUMA policies that specifies on which
node pages are allocated. See set_mempolicy(2) or numactl(8) on details of the available policies. The numastat counters keep track on
what nodes memory is finally allocated.
The counters are separated for each node. Each count event is the allocation of a page of memory.
numa_hit is the number of allocations where an allocation was intended for that node and succeeded there.
numa_miss shows how often an allocation was intended for this node, but ended up on another node due to low memory.
numa_foreign is the number of allocations that were intended for another node, but ended up on this node. Each numa_foreign event has a
numa_miss on another node.
interleave_hit is the number of interleave policy allocations that were intended for a specific node and succeeded there.
local_node is incremented when a process running on the node allocated memory on the same node.
other_node is incremented when a process running on another node allocated memory on that node.
SEE ALSO numactl(8)set_mempolicy(2)numa(3)NOTES
numastat output is only available on NUMA systems.
numastat assumes the output terminal has a width of 80 characters and tries to format the output accordingly.
watch -n1 numastat
watch -n1 --differences=accumulative numastat
The output formatting on machines with a large number of nodes could be improved.
SuSE Labs Nov 2004 NUMACTL(8)
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