From: Peter Zijlstra <peterz-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
To: Matthew Garrett <mjg-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: Thomas Gleixner <tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>,
Arjan van de Ven <arjan-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>,
Lennart Poettering
<mzxreary-uLTowLwuiw4b1SvskN2V4Q@public.gmane.org>,
Andrew Morton
<akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>,
"Kirill A. Shutemov"
<kirill-oKw7cIdHH8eLwutG50LtGA@public.gmane.org>,
Paul Menage <menage-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>,
Li Zefan <lizf-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org>,
containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
jacob.jun.pan-VuQAYsv1563Yd54FQh9/CA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Matt Helsley <matthltc-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>,
linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Kay Sievers <kay.sievers-tD+1rO4QERM@public.gmane.org>,
harald-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
david-o55+BOBDEFg@public.gmane.org,
greg-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org
Subject: Re: [PATCH, v10 3/3] cgroups: introduce timer slack controller
Date: Mon, 17 Oct 2011 18:36:44 +0200 [thread overview]
Message-ID: <1318869404.4172.67.camel@twins> (raw)
In-Reply-To: <20111017153142.GA17047-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org>
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?
WARNING: multiple messages have this Message-ID (diff)
From: Peter Zijlstra <peterz@infradead.org>
To: Matthew Garrett <mjg@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Arjan van de Ven <arjan@linux.intel.com>,
Lennart Poettering <mzxreary@0pointer.de>,
Andrew Morton <akpm@linux-foundation.org>,
"Kirill A. Shutemov" <kirill@shutemov.name>,
Paul Menage <menage@google.com>, Li Zefan <lizf@cn.fujitsu.com>,
containers@lists.linux-foundation.org,
jacob.jun.pan@linux.intel.com, linux-kernel@vger.kernel.org,
Matt Helsley <matthltc@us.ibm.com>,
linux-api@vger.kernel.org, Kay Sievers <kay.sievers@vrfy.org>,
harald@redhat.com, david@fubar.dk, greg@kroah.com
Subject: Re: [PATCH, v10 3/3] cgroups: introduce timer slack controller
Date: Mon, 17 Oct 2011 18:36:44 +0200 [thread overview]
Message-ID: <1318869404.4172.67.camel@twins> (raw)
In-Reply-To: <20111017153142.GA17047@srcf.ucam.org>
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?
next prev parent reply other threads:[~2011-10-17 16:36 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-11 16:15 [PATCH, v10 0/3] Introduce timer slack controller Kirill A. Shutemov
2011-10-11 16:15 ` [PATCH, v10 1/3] hrtimer: introduce effective timer slack Kirill A. Shutemov
2011-10-11 16:15 ` [PATCH, v10 2/3] hrtimer: implement PR_GET_EFFECTIVE_TIMERSLACK Kirill A. Shutemov
2011-10-11 16:15 ` [PATCH, v10 3/3] cgroups: introduce timer slack controller Kirill A. Shutemov
[not found] ` <1318349729-3108-4-git-send-email-kirill-oKw7cIdHH8eLwutG50LtGA@public.gmane.org>
2011-10-11 16:49 ` Kirill A. Shutemov
2011-10-11 16:49 ` Kirill A. Shutemov
2011-10-14 22:43 ` Andrew Morton
2011-10-14 22:43 ` Andrew Morton
[not found] ` <20111014154348.ae6267aa.akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
2011-10-14 23:34 ` Kirill A. Shutemov
2011-10-14 23:34 ` Kirill A. Shutemov
2011-10-15 11:20 ` Lennart Poettering
2011-10-15 19:11 ` Peter Zijlstra
2011-10-17 1:39 ` Lennart Poettering
2011-10-17 1:39 ` Lennart Poettering
[not found] ` <20111017013921.GA30035-kS5D54t9nk0aINubkmmoJbNAH6kLmebB@public.gmane.org>
2011-10-17 3:22 ` Matthew Garrett
2011-10-17 3:22 ` Matthew Garrett
[not found] ` <20111017032232.GA4816-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org>
2011-10-17 5:21 ` Arjan van de Ven
2011-10-17 5:21 ` Arjan van de Ven
[not found] ` <4E9BBB6D.4050004-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2011-10-17 7:36 ` Peter Zijlstra
2011-10-17 7:36 ` Peter Zijlstra
2011-10-17 9:38 ` Thomas Gleixner
2011-10-17 9:38 ` Thomas Gleixner
2011-10-17 12:46 ` Matthew Garrett
2011-10-17 12:46 ` Matthew Garrett
[not found] ` <20111017124647.GA12838-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org>
2011-10-17 13:06 ` Peter Zijlstra
2011-10-17 13:06 ` Peter Zijlstra
2011-10-17 14:11 ` Matthew Garrett
[not found] ` <20111017141147.GA14581-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org>
2011-10-17 14:28 ` Peter Zijlstra
2011-10-17 14:28 ` Peter Zijlstra
2011-10-17 14:35 ` Arjan van de Ven
[not found] ` <4E9C3D39.9020109-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2011-10-17 14:45 ` Peter Zijlstra
2011-10-17 14:45 ` Peter Zijlstra
2011-10-17 14:40 ` Matthew Garrett
2011-10-17 14:40 ` Matthew Garrett
2011-10-17 14:49 ` Peter Zijlstra
2011-10-17 14:59 ` Matthew Garrett
2011-10-17 14:59 ` Matthew Garrett
2011-10-17 15:11 ` Peter Zijlstra
2011-10-17 15:19 ` Matthew Garrett
2011-10-17 15:19 ` Matthew Garrett
[not found] ` <20111017151920.GA16664-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org>
2011-10-17 15:21 ` Peter Zijlstra
2011-10-17 15:21 ` Peter Zijlstra
2011-10-17 15:31 ` Matthew Garrett
2011-10-17 15:31 ` Matthew Garrett
[not found] ` <20111017153142.GA17047-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org>
2011-10-17 16:36 ` Peter Zijlstra [this message]
2011-10-17 16:36 ` Peter Zijlstra
2011-10-17 16:49 ` Matthew Garrett
2011-10-17 16:49 ` Matthew Garrett
2011-10-17 15:48 ` Alan Cox
2011-10-17 15:48 ` Alan Cox
[not found] ` <20111017164839.3887ee3e-qBU/x9rampVanCEyBjwyrvXRex20P6io@public.gmane.org>
2011-10-17 16:33 ` Peter Zijlstra
2011-10-17 16:33 ` Peter Zijlstra
2011-10-17 15:18 ` Peter Zijlstra
2011-10-17 15:18 ` Peter Zijlstra
2011-10-17 7:34 ` Peter Zijlstra
2011-10-17 13:55 ` Lennart Poettering
2011-10-17 7:28 ` Peter Zijlstra
2011-10-17 7:28 ` Peter Zijlstra
2011-10-17 19:46 ` Valdis.Kletnieks-PjAqaU27lzQ
2011-10-17 19:46 ` Valdis.Kletnieks
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