On Fri, 11 May 2012, Glauber Costa wrote:

Thank you in advance for your time reviewing this!

Where do I find the rationale for all of this? Trouble is that pages can
contain multiple objects f.e. so accounting of pages to groups is a bit fuzzy.
I have not followed memcg too much since it is not relevant (actual
it is potentially significantly harmful given the performance
impact) to the work loads that I am using.