linux-kernel - Re: [RFC/RFT PATCH v3] sched: automated per tty task groups

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Message-ID: <20101118231218.GX6024@const.famille.thibault.fr>
Date:	Fri, 19 Nov 2010 00:12:18 +0100
From:	Samuel Thibault <samuel.thibault@...-lyon.org>
To:	Hans-Peter Jansen <hpj@...la.net>
Cc:	linux-kernel@...r.kernel.org,
	Lennart Poettering <mzxreary@...inter.de>,
	Linus Torvalds <torvalds@...ux-foundation.org>, david@...g.hm,
	Dhaval Giani <dhaval.giani@...il.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Mike Galbraith <efault@....de>,
	Vivek Goyal <vgoyal@...hat.com>,
	Oleg Nesterov <oleg@...hat.com>,
	Markus Trippelsdorf <markus@...ppelsdorf.de>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	Ingo Molnar <mingo@...e.hu>,
	Balbir Singh <balbir@...ux.vnet.ibm.com>
Subject: Re: [RFC/RFT PATCH v3] sched: automated per tty task groups

Hans-Peter Jansen, le Thu 18 Nov 2010 23:33:46 +0100, a écrit :
> As already mentioned countless times (and some of it was even renamed 
> for this very fact): the grouping by tty is just a starter. There are 
> plenty of other possibilities to group the scheduling. The hard part is 
> to find the right grouping concepts, that are making sense in the 
> usability department _and_ are easy enough to be picked up from our 
> favorite system and desktop environments. That's where the generic 
> cgroup concept seems to be lacking ATM..

Actually, cgroups should probably be completely hierarchical: sessions
contain process groups, which contain processes, which contain threads.
You could also gather sessions with the same uid.

Samuel
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