On Thu, 24 Nov 2011 23:33:26 -0200 Glauber Costa <glommer@xxxxxxxxxxxxx> wrote: > Right now, after we collect tick statistics for user and system and store them > in a well known location, we keep the same statistics again for cpuacct. > Since cpuacct is hierarchical, the numbers for the root cgroup should be > absolutely equal to the system-wide numbers. > > So it would be better to just use it: this patch changes cpuacct accounting > in a way that the cpustat statistics are kept in a struct kernel_cpustat percpu > array. In the root cgroup case, we just point it to the main array. The rest of > the hierarchy walk can be totally disabled later with a static branch - but I am > not doing it here. > > Signed-off-by: Glauber Costa <glommer@xxxxxxxxxxxxx> > CC: Paul Tuner <pjt@xxxxxxxxxx> > CC: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx> seems reasonable to me. Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe cgroups" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
