[PATCH UPDATED 15/24] cfq-iosched: enable full blkcg hierarchy support

[Tejun Heo]

Hey, Vivek.

On Tue, Jan 08, 2013 at 09:42:40AM -0500, Vivek Goyal wrote:
> > +A has children and further distributes its 57% among the children and
> > +the implicit leaf node. The total active weight at this level is
> > +AA:500 + AB:1000 + A-leaf:750 = 2250.
> > +
> > + A-leaf    : ( 750 / 2250) * A =~ 19%
> > + AA(-leaf) : ( 500 / 2250) * A =~ 12%
> > + AB(-leaf) : (1000 / 2250) * A =~ 25%
> 
> Hi Tejun,
> 
> What does (-leaf) is supposed to signify? I can understand that A-leaf
> tells the share of A's tasks which are effectively in A-leaf group. 

It's saying that the weight for AA and AA-leaf are the same.

> Will just plain AA and AB be more clear?

I don't know, maybe.

Thanks.

-- 
tejun