linux-kernel - Re: [ANNOUNCE] 3.0-rt6

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Message-ID: <1312194842.8233.88.camel@marge.simson.net>
Date:	Mon, 01 Aug 2011 12:34:02 +0200
From:	Mike Galbraith <efault@....de>
To:	Rolando Martins <rolando.martins@...il.com>
Cc:	Peter Zijlstra <peterz@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-rt-users <linux-rt-users@...r.kernel.org>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Subject: Re: [ANNOUNCE] 3.0-rt6

On Mon, 2011-08-01 at 09:42 +0100, Rolando Martins wrote:
> Hi Peter,
> is there any progress on the CONFIG_RT_GROUP_SCHED front?

Out of curiosity, why would you want that in a -rt kernel?

(I haven't done any PI testing with that, but I can imagine the throttle
causing heartburn)

	-Mike

> I don't know if this is related, but in 33-rt if I used a low (=100)
> cpu_runtime_us and cpu_period_us then I would get some freezes
> (something that does not happen in 2.6.39).

(providing a realtime budget of 100 whole microseconds to a kernel where
everything and it's brother is realtime is unlikely to go well)

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