[RFD] cgroup: about multiple hierarchies
tj at kernel.org
Thu Feb 23 22:34:57 UTC 2012
On Thu, Feb 23, 2012 at 04:38:47PM -0500, Vivek Goyal wrote:
> On Thu, Feb 23, 2012 at 10:41:34AM +0100, Peter Zijlstra wrote:
> > On Wed, 2012-02-22 at 11:57 -0500, Vivek Goyal wrote:
> > >
> > > Again, it does not mean I am advocating flat hiearchy. I am just wondering
> > > in case of fully nested hierarchies (task at same level as groups), how
> > > does one explain it to a layman user who understands things in terms of
> > > % of resources.
> > If your complete control is % based then I would assume its a % of a %.
> > Simple enough.
> But % of % will vary dynamically and not be static. So if root has got
> 100% of resources and we want 25% of that for a group, then hierarchy
> might look as follows.
It is complex but semantics is pretty well defined. It should behave
exactly the same as HTB. Whether the complexity would be justifiable
is a different issue.
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