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Documentation / numastat.txt


Based on kernel version 4.16.1. Page generated on 2018-04-09 11:53 EST.

1	===============================
2	Numa policy hit/miss statistics
3	===============================
4	
5	/sys/devices/system/node/node*/numastat
6	
7	All units are pages. Hugepages have separate counters.
8	
9	=============== ============================================================
10	numa_hit	A process wanted to allocate memory from this node,
11			and succeeded.
12	
13	numa_miss	A process wanted to allocate memory from another node,
14			but ended up with memory from this node.
15	
16	numa_foreign	A process wanted to allocate on this node,
17			but ended up with memory from another one.
18	
19	local_node	A process ran on this node and got memory from it.
20	
21	other_node	A process ran on this node and got memory from another node.
22	
23	interleave_hit 	Interleaving wanted to allocate from this node
24			and succeeded.
25	=============== ============================================================
26	
27	For easier reading you can use the numastat utility from the numactl package
28	(http://oss.sgi.com/projects/libnuma/). Note that it only works
29	well right now on machines with a small number of CPUs.
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