* Ying Han <yinghan@xxxxxxxxxx> [2011-05-24 00:01:53]: > change v2..v1: > 1. add sample output. > > Signed-off-by: Ying Han <yinghan@xxxxxxxxxx> > --- > Documentation/cgroups/memory.txt | 18 ++++++++++++++++++ > 1 files changed, 18 insertions(+), 0 deletions(-) > > diff --git a/Documentation/cgroups/memory.txt b/Documentation/cgroups/memory.txt > index 2d7e527..0b1a1ce 100644 > --- a/Documentation/cgroups/memory.txt > +++ b/Documentation/cgroups/memory.txt > @@ -71,6 +71,7 @@ Brief summary of control files. > memory.move_charge_at_immigrate # set/show controls of moving charges > memory.oom_control # set/show oom controls. > memory.async_control # set control for asynchronous memory reclaim > + memory.numa_stat # show the number of memory usage per numa node > > 1. History > > @@ -477,6 +478,23 @@ value for efficient access. (Of course, when necessary, it's synchronized.) > If you want to know more exact memory usage, you should use RSS+CACHE(+SWAP) > value in memory.stat(see 5.2). > > +5.6 numa_stat > + > +This is similar to numa_maps but per-memcg basis. This is useful to add visibility > +of numa locality information in memcg since the pages are allowed to be allocated > +at any physical node. One of the usecase is evaluating application performance by > +combining this information with the cpu allocation to the application. > + > +We export "total", "file", "anon" and "unevictable" pages per-node for each memcg. > +The format ouput of the memory.numa_stat: > + > +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 total = file + anon + unevictable. > + Looks good Acked-by: Balbir Singh <balbir@xxxxxxxxxxxxxxxxxx> -- Three Cheers, Balbir -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>