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authorMinchan Kim <minchan.kim@gmail.com>2009-09-21 17:03:21 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-09-22 07:17:39 -0700
commit5d3bc2709114b416cab588c577e02c2470e40a6c (patch)
tree155d04471863539a03cf94376f6b03f78f9daf16 /Documentation/numastat.txt
parenta6f9edd65beaef24836e8934c8912c1e974dd45c (diff)
mm: fix NUMA accounting in numastat.txt
In Documentation/numastat.txt, it confused me. For example, there are nodes [0,1] in system. barrios:~$ cat /proc/zoneinfo | egrep 'numa|zone' Node 0, zone DMA numa_hit 33226 numa_miss 1739 numa_foreign 27978 .. .. Node 1, zone DMA numa_hit 307 numa_miss 46900 numa_foreign 0 1) In node 0, NUMA_MISS means it wanted to allocate page in node 1 but ended up with page in node 0 2) In node 0, NUMA_FOREIGN means it wanted to allocate page in node 0 but ended up with page from Node 1. But now, numastat explains it oppositely about (MISS, FOREIGN). Let's fix up with viewpoint of zone. Signed-off-by: Minchan Kim <minchan.kim@gmail.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Acked-by: Christoph Lameter <cl@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/numastat.txt')
-rw-r--r--Documentation/numastat.txt8
1 files changed, 4 insertions, 4 deletions
diff --git a/Documentation/numastat.txt b/Documentation/numastat.txt
index 80133ace1eb2..9fcc9a608dc0 100644
--- a/Documentation/numastat.txt
+++ b/Documentation/numastat.txt
@@ -7,10 +7,10 @@ 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 this node,
- but ended up with memory from another.
-numa_foreign A process wanted to allocate on another node,
- but ended up with memory from this one.
+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

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