tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1===============================
2Numa policy hit/miss statistics
3===============================
4
5/sys/devices/system/node/node*/numastat
6
7All units are pages. Hugepages have separate counters.
8
9=============== ============================================================
10numa_hit A process wanted to allocate memory from this node,
11 and succeeded.
12
13numa_miss A process wanted to allocate memory from another node,
14 but ended up with memory from this node.
15
16numa_foreign A process wanted to allocate on this node,
17 but ended up with memory from another one.
18
19local_node A process ran on this node and got memory from it.
20
21other_node A process ran on this node and got memory from another node.
22
23interleave_hit Interleaving wanted to allocate from this node
24 and succeeded.
25=============== ============================================================
26
27For easier reading you can use the numastat utility from the numactl package
28(http://oss.sgi.com/projects/libnuma/). Note that it only works
29well right now on machines with a small number of CPUs.
30