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Date: Tue, 18 Jul 2017 19:05:11 +0200
From: Peter Zijlstra <peterz@infradead.org>
To: Arjan van de Ven <arjan@linux.intel.com>
Cc: paulmck@linux.vnet.ibm.com, "Li, Aubrey" <aubrey.li@linux.intel.com>,
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        daniel.lezcano@linaro.org
Subject: Re: [RFC PATCH v1 00/11] Create fast idle path for short idle periods
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On Tue, Jul 18, 2017 at 09:37:57AM -0700, Arjan van de Ven wrote:

> that's just a matter of fixing the C1 and later thresholds to line up right.
> shrug that's the most trivial thing to do, it's a number in a table.

Well, they represent a physical measure, namely the break-even-time. If
you go muck with them you don't have anything left.  This is tinkering
of the worst possible kind.

Fix the estimator if you want behavioural changes.

> some distros do those tunings anyway when they don't like the upstream tunings

*shudder*