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Subject: Re: [RFC/RFT PATCH] sched: automated per tty task groups
From: Mike Galbraith <efault@gmx.de>
To: Ingo Molnar <mingo@elte.hu>
Cc: LKML <linux-kernel@vger.kernel.org>,
        Peter Zijlstra <a.p.zijlstra@chello.nl>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
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Date: Tue, 19 Oct 2010 15:12:32 +0200
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On Tue, 2010-10-19 at 13:56 +0200, Ingo Molnar wrote:

> Could this feature realistically do block IO isolation as well? It's always annoying 
> when some big IO job is making the desktop jerky. Especially as your patch is 
> selecting the block cgroup feature already:
> 
> +       select BLK_CGROUP

I know my cgroup pgid config helps a bunch with rummaging in my email
while other IO is going on.  I've been attributing that to BLK_CGROUP,
but have no proof.

	-Mike