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Documentation / numastat.txt




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Based on kernel version 3.4. Page generated on 2012-05-21 22:09 EST.

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