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23 October 2021, 00:29:24 UTC
Revision bc127bda37db2792fa7f02a8d258731ecf3e4b8b authored by Rafael Aquini on 02 December 2014, 23:59:22 UTC, committed by Linus Torvalds on 03 December 2014, 01:32:07 UTC 
mm: do not overwrite reserved pages counter at show_mem()
 
Minor fixlet to perform the reserved pages counter aggregation for each
node, at show_mem()

Signed-off-by: Rafael Aquini <aquini@redhat.com>
Acked-by: Rik van Riel <riel@redhat.com>
Acked-by: Johannes Weiner <jweiner@redhat.com>
Acked-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent 3a18ca0
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Tip revision: bc127bda37db2792fa7f02a8d258731ecf3e4b8b authored by Rafael Aquini on 02 December 2014, 23:59:22 UTC
mm: do not overwrite reserved pages counter at show_mem()
Tip revision: bc127bd
numastat.txt 

Numa policy hit/miss statistics

/sys/devices/system/node/node*/numastat

All units are pages. Hugepages have separate counters.

numa_hit	A process wanted to allocate memory from this node,
		and succeeded.

numa_miss	A process wanted to allocate memory from another node,
		but ended up with memory from this node.

numa_foreign	A process wanted to allocate on this node,
		but ended up with memory from another one.

local_node	A process ran on this node and got memory from it.

other_node	A process ran on this node and got memory from another node.

interleave_hit 	Interleaving wanted to allocate from this node
		and succeeded.

For easier reading you can use the numastat utility from the numactl package
(http://oss.sgi.com/projects/libnuma/). Note that it only works
well right now on machines with a small number of CPUs.
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