# Re: \[PATCH, v10 3/3\] cgroups: introduce timer slack controller

- From: Matthew Garrett \<hidden\>
- Date: 2011-10-17 15:19:40 
- List: linux-api
- Page: https://ratatoskr.run/linux-api/2011/10/3776091
- Thread: https://ratatoskr.run/linux-api/2011/10/3773687/t.md

```text
On Mon, Oct 17, 2011 at 05:11:00PM +0200, Peter Zijlstra wrote:
> On Mon, 2011-10-17 at 15:59 +0100, Matthew Garrett wrote:
> > I'm not saying that it's a problem. I'm saying that your approach 
> > changes behavioural semantics in a way that may violate application 
> > expectations just as surely as changing the timer behaviour does. 
> > There's no free approach.
> 
> I'm not saying its free, I'm saying its a much better approach since it
> gets rid of the entire problem instead of papering over the worst of it.

It solves it for a specific case, ie animations. Any other timer driven 
behaviour continues. It really does need to be tied to session idle, not 
application visibility, and enforcement at the X level does nothing to 
help that.

-- 
Matthew Garrett | mjg59-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org
```