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| author | Ying Han <[email protected]> | 2011-05-26 16:25:37 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2011-05-26 17:12:36 -0700 |
| commit | 406eb0c9ba765eb066406fd5ce9d5e2b169a4d5a (patch) | |
| tree | 71805cc1bcf4b1a4e7eb58a726d2ba21d913ba1a /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | 1bac180bd29e03989f50054af97b53b8d37a364a (diff) | |
memcg: add memory.numastat api for numa statistics
The new API exports numa_maps per-memcg basis. This is a piece of useful
information where it exports per-memcg page distribution across real numa
nodes.
One of the usecases is evaluating application performance by combining
this information w/ the cpu allocation to the application.
The output of the memory.numastat tries to follow w/ simiar format of
numa_maps like:
total=<total pages> N0=<node 0 pages> N1=<node 1 pages> ...
file=<total file pages> N0=<node 0 pages> N1=<node 1 pages> ...
anon=<total anon pages> N0=<node 0 pages> N1=<node 1 pages> ...
unevictable=<total anon pages> N0=<node 0 pages> N1=<node 1 pages> ...
And we have per-node:
total = file + anon + unevictable
$ cat /dev/cgroup/memory/memory.numa_stat
total=250020 N0=87620 N1=52367 N2=45298 N3=64735
file=225232 N0=83402 N1=46160 N2=40522 N3=55148
anon=21053 N0=3424 N1=6207 N2=4776 N3=6646
unevictable=3735 N0=794 N1=0 N2=0 N3=2941
Signed-off-by: Ying Han <[email protected]>
Cc: Balbir Singh <[email protected]>
Cc: Daisuke Nishimura <[email protected]>
Acked-by: KAMEZAWA Hiroyuki <[email protected]>
Acked-by: Daisuke Nishimura <[email protected]>
Cc: Minchan Kim <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions