- Subject: Re: [PATCH, v10 3/3] cgroups: introduce timer slack controller
- From: Matthew Garrett <mjg@xxxxxxxxxx>
- Date: Mon, 17 Oct 2011 16:19:20 +0100
- Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Arjan van de Ven <arjan@xxxxxxxxxxxxxxx>, Lennart Poettering <mzxreary@xxxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, "Kirill A. Shutemov" <kirill@xxxxxxxxxxxxx>, Paul Menage <menage@xxxxxxxxxx>, Li Zefan <lizf@xxxxxxxxxxxxxx>, containers@xxxxxxxxxxxxxxxxxxxxxxxxxx, jacob.jun.pan@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, Matt Helsley <matthltc@xxxxxxxxxx>, linux-api@xxxxxxxxxxxxxxx, Kay Sievers <kay.sievers@xxxxxxxx>, harald@xxxxxxxxxx, david@xxxxxxxx, greg@xxxxxxxxx
- In-reply-to: <1318864260.4172.54.camel@twins>
- References: <1318837019.6594.29.camel@twins> <alpine.LFD.2.02.1110171119580.3240@ionos> <20111017124647.GA12838@srcf.ucam.org> <1318856786.4172.22.camel@twins> <20111017141147.GA14581@srcf.ucam.org> <1318861707.4172.32.camel@twins> <20111017144013.GA15447@srcf.ucam.org> <1318862969.4172.45.camel@twins> <20111017145952.GB15769@srcf.ucam.org> <1318864260.4172.54.camel@twins>
- User-agent: Mutt/1.5.20 (2009-06-14)
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@xxxxxxxxxxxxx
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- References:
- Re: [PATCH, v10 3/3] cgroups: introduce timer slack controller
- Re: [PATCH, v10 3/3] cgroups: introduce timer slack controller
- Re: [PATCH, v10 3/3] cgroups: introduce timer slack controller
- Re: [PATCH, v10 3/3] cgroups: introduce timer slack controller
- Re: [PATCH, v10 3/3] cgroups: introduce timer slack controller
- Re: [PATCH, v10 3/3] cgroups: introduce timer slack controller
- Re: [PATCH, v10 3/3] cgroups: introduce timer slack controller
- Re: [PATCH, v10 3/3] cgroups: introduce timer slack controller
- Re: [PATCH, v10 3/3] cgroups: introduce timer slack controller
- Re: [PATCH, v10 3/3] cgroups: introduce timer slack controller
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