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From: Paul Menage <menage@google.com>
Date: Fri, 19 Nov 2010 04:31:50 -0800
Message-ID: <AANLkTikB6QXxTav=b7qNzHUv4HXnjjT9TdcEdTYHbEkw@mail.gmail.com>
Subject: Re: [RFC/RFT PATCH v3] sched: automated per tty task groups
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Samuel Thibault <samuel.thibault@ens-lyon.org>,
        Mike Galbraith <efault@gmx.de>, Hans-Peter Jansen <hpj@urpla.net>,
        linux-kernel@vger.kernel.org,
        Lennart Poettering <mzxreary@0pointer.de>,
        Linus Torvalds <torvalds@linux-foundation.org>, david@lang.hm,
        Dhaval Giani <dhaval.giani@gmail.com>, Vivek Goyal <vgoyal@redhat.com>,
        Oleg Nesterov <oleg@redhat.com>,
        Markus Trippelsdorf <markus@trippelsdorf.de>,
        Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
        Ingo Molnar <mingo@elte.hu>, Balbir Singh <balbir@linux.vnet.ibm.com>
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On Fri, Nov 19, 2010 at 3:49 AM, Peter Zijlstra <a.p.zijlstra@chello.nl> wrote:
> It must be nice to be that ignorant ;-) Speaking for the scheduler
> cgroup controller (that being the only one I actually know), most all
> the load-balance operations are O(n) in the number of active cgroups,
> and a lot of the cpu local schedule operations are O(d) where d is the
> depth of the cgroup tree.

The same would apply to CPU autogroups, presumably?

Paul
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