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author | root <root@artemis.panaceas.org> | 2015-12-25 04:40:36 +0000 |
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committer | root <root@artemis.panaceas.org> | 2015-12-25 04:40:36 +0000 |
commit | 849369d6c66d3054688672f97d31fceb8e8230fb (patch) | |
tree | 6135abc790ca67dedbe07c39806591e70eda81ce /Documentation/numastat.txt | |
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diff --git a/Documentation/numastat.txt b/Documentation/numastat.txt new file mode 100644 index 00000000..9fcc9a60 --- /dev/null +++ b/Documentation/numastat.txt @@ -0,0 +1,22 @@ + +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 +(ftp://ftp.suse.com/pub/people/ak/numa/numactl*). Note that it only works +well right now on machines with a small number of CPUs. + |