* Ying Han <yinghan@xxxxxxxxxx> [2011-05-18 17:55:11]: > 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 usecase 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> ... > That seems like a good idea, so +1 for we need to do this. > $ cat /dev/cgroup/memory/memory.numa_stat > total=317674 N0=101850 N1=72552 N2=30120 N3=113142 > file=288219 N0=98046 N1=59220 N2=23578 N3=107375 > anon=25699 N0=3804 N1=10124 N2=6540 N3=5231 > > Note: I noticed <total pages> is not equal to the sum of the rest of counters. > I might need to change the way get that counter, comments are welcomed. > Can you see if the total is greater or lesser than the actual value? Do you have any pages mlocked? > change v2..v1: > 1. add also the file and anon pages on per-node distribution. > > Signed-off-by: Ying Han <yinghan@xxxxxxxxxx> > --- > mm/memcontrol.c | 109 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ > 1 files changed, 109 insertions(+), 0 deletions(-) > -- 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>