Re: [ckrm-tech] [RFC 3/5] sched: Add CPU rate hard caps

[Peter Williams]

Chandra Seetharaman wrote:
> On Thu, 2006-06-01 at 14:04 +0530, Balbir Singh wrote:
> > Hi, Kirill,
> >
> > Kirill Korotaev wrote:
> > > > Do you have any documented requirements for container resource 
> > > > management?
> > > > Is there a minimum list of features and nice to have features for 
> > > > containers
> > > > as far as resource management is concerned?
> > > Sure! You can check OpenVZ project (http://openvz.org) for example of 
> > > required resource management. BTW, I must agree with other people here 
> > > who noticed that per-process resource management is really useless and 
> > > hard to use :(
>
> I totally agree.
> > I'll take a look at the references. I agree with you that it will be useful
> > to have resource management for a group of tasks.

But you don't need something as complex as CKRM either.  This capping 
functionality coupled with (the lamented) PAGG patches (should have been 
called TAGG for "task aggregation" instead of PAGG for "process 
aggregation") would allow you to implement a kernel module that could 
apply caps to arbitrary groups of tasks.

Peter
--
Peter Williams                                   pwil3058@xxxxxxxxxxxxxx

"Learning, n. The kind of ignorance distinguishing the studious."
 -- Ambrose Bierce
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