From 8e4bff4cab0ddac6060645b0715210484d02ff40 Mon Sep 17 00:00:00 2001
From: Yuval Adam <_@yuv.al>
Date: Wed, 30 Aug 2017 08:25:59 +0000
Subject: Initial file dump from open source release

---
 Documentation/numastat.txt | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 Documentation/numastat.txt

(limited to 'Documentation/numastat.txt')

diff --git a/Documentation/numastat.txt b/Documentation/numastat.txt
new file mode 100644
index 00000000..52032779
--- /dev/null
+++ b/Documentation/numastat.txt
@@ -0,0 +1,27 @@
+
+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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