linux-kernel - Re: [PATCH, v10 3/3] cgroups: introduce timer slack controller

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Message-ID: <1318869404.4172.67.camel@twins>
Date:	Mon, 17 Oct 2011 18:36:44 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Matthew Garrett <mjg@...hat.com>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Arjan van de Ven <arjan@...ux.intel.com>,
	Lennart Poettering <mzxreary@...inter.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"Kirill A. Shutemov" <kirill@...temov.name>,
	Paul Menage <menage@...gle.com>,
	Li Zefan <lizf@...fujitsu.com>,
	containers@...ts.linux-foundation.org,
	jacob.jun.pan@...ux.intel.com, linux-kernel@...r.kernel.org,
	Matt Helsley <matthltc@...ibm.com>, linux-api@...r.kernel.org,
	Kay Sievers <kay.sievers@...y.org>, harald@...hat.com,
	david@...ar.dk, greg@...ah.com
Subject: Re: [PATCH, v10 3/3] cgroups: introduce timer slack controller

On Mon, 2011-10-17 at 16:31 +0100, Matthew Garrett wrote:
> On Mon, Oct 17, 2011 at 05:21:10PM +0200, Peter Zijlstra wrote:
> 
> > Well what other cases are there? Can we enumerate them and come up 
> > with similar solutions?
> 
> Javascript has timers. We execute rather a lot of javascript from 
> sources we can't influence at all.

Which brings me to yet another gripe I've got with firefox, _WHY_ does
it run javascript for tabs I can't see? Simply freeze the interpreter.

Then again, what does JavaScript do with these timers? I don't really
see how javascript/random-native-binary are really different, something
needs doing. What something?


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