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Message-ID: <20170718044521.GO3441@tassilo.jf.intel.com>
Date:   Mon, 17 Jul 2017 21:45:21 -0700
From:   Andi Kleen <ak@...ux.intel.com>
To:     "Li, Aubrey" <aubrey.li@...ux.intel.com>
Cc:     Peter Zijlstra <peterz@...radead.org>,
        Frederic Weisbecker <fweisbec@...il.com>,
        Christoph Lameter <cl@...ux.com>,
        Aubrey Li <aubrey.li@...el.com>, tglx@...utronix.de,
        len.brown@...el.com, rjw@...ysocki.net, tim.c.chen@...ux.intel.com,
        arjan@...ux.intel.com, paulmck@...ux.vnet.ibm.com,
        yang.zhang.wz@...il.com, x86@...nel.org,
        linux-kernel@...r.kernel.org, daniel.lezcano@...aro.org
Subject: Re: [RFC PATCH v1 00/11] Create fast idle path for short idle periods

> We need a tradeoff here IMHO. I'll check Daniel's work to understand how/if
> it's better than menu governor.

I still would like to see how the fast path without the C1 heuristic works.

Fast pathing is a different concept from a better predictor. IMHO we need
both, but the first is likely lower hanging fruit.

-Andi

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