Message-ID: <1502812653.1349.94.camel@gmx.de>
Subject: Re: [RFC PATCH 7/9] housekeeping: Use own boot option, independant
 from nohz
From: Mike Galbraith <efault@gmx.de>
To: Christopher Lameter <cl@linux.com>,
        "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>,
        Luiz Capitulino <lcapitulino@redhat.com>,
        LKML <linux-kernel@vger.kernel.org>,
        Peter Zijlstra <peterz@infradead.org>,
        Chris Metcalf <cmetcalf@mellanox.com>,
        Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@kernel.org>,
        Rik van Riel <riel@redhat.com>, Wanpeng Li <kernellwp@gmail.com>
Date: Tue, 15 Aug 2017 17:57:33 +0200
In-Reply-To: <alpine.DEB.2.20.1708151051580.8296@nuc-kabylake>
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         <20170811123927.33e094f3@redhat.com> <20170812141004.GA21918@lerouge>
         <20170813111340.0ade6d58@redhat.com> <20170814170107.GA27479@lerouge>
         <20170814133440.3dc31bad@redhat.com> <1502735386.31351.61.camel@gmx.de>
         <20170815130712.GA16627@lerouge> <1502810123.1349.71.camel@gmx.de>
         <20170815153005.GJ7017@linux.vnet.ibm.com>
         <alpine.DEB.2.20.1708151051580.8296@nuc-kabylake>
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On Tue, 2017-08-15 at 10:52 -0500, Christopher Lameter wrote:
> On Tue, 15 Aug 2017, Paul E. McKenney wrote:
> 
> > Don't the HPC guys just disable idle_balance(), or am I out of date again?
> 
> Ummm.. Why does idle management matter when your goal is to keep all
> processor busy working at maximum throughput?

If you _never_ idle, you never have to worry about it.  Is 100% CPU
until the end of time all there is to HPC?

	-Mike