Date: Mon, 11 May 2015 08:57:59 -0400
From: Steven Rostedt <rostedt@goodmis.org>
To: Ingo Molnar <mingo@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
        Chris Metcalf <cmetcalf@ezchip.com>,
        Gilad Ben Yossef <giladb@ezchip.com>, Ingo Molnar <mingo@redhat.com>,
        Peter Zijlstra <peterz@infradead.org>, Rik van Riel <riel@redhat.com>,
        Tejun Heo <tj@kernel.org>, Frederic Weisbecker <fweisbec@gmail.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
        Christoph Lameter <cl@linux.com>,
        "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>,
        linux-doc@vger.kernel.org, linux-api@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/6] support "dataplane" mode for nohz_full
Message-ID: <20150511085759.71deeb64@gandalf.local.home>
In-Reply-To: <20150509070538.GA9413@gmail.com>
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	<554D428E.6020702@ezchip.com>
	<20150508161909.308d60e21f6b83b897174276@linux-foundation.org>
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NO_HZ_LEAVE_ME_THE_FSCK_ALONE!


On Sat, 9 May 2015 09:05:38 +0200
Ingo Molnar <mingo@kernel.org> wrote:
 
> So I think we should either rename NO_HZ_FULL to NO_HZ_PURE, or keep 
> it at NO_HZ_FULL: because the intention of NO_HZ_FULL was always to be 
> such a 'zero overhead' mode of operation, where if user-space runs, it 
> won't get interrupted in any way.


All kidding aside, I think this is the real answer. We don't need a new
NO_HZ, we need to make NO_HZ_FULL work. Right now it doesn't do exactly
what it was created to do. That should be fixed.

Please lets get NO_HZ_FULL up to par. That should be the main focus.

-- Steve
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