linux-kernel - Re: [PATCH] x86: intel_epb: Set Alder Lake N and Raptor Lake P normal EPB

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Message-ID: <235f4f04-b2ae-4a7f-043b-1cd6a85bd8ea@intel.com>
Date:   Thu, 27 Oct 2022 15:30:15 -0700
From:   Dave Hansen <dave.hansen@...el.com>
To:     Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
        tglx@...utronix.de, mingo@...hat.com, bp@...en8.de,
        dave.hansen@...ux.intel.com, hpa@...or.com, rafael@...nel.org,
        len.brown@...el.com
Cc:     peterz@...radead.org, x86@...nel.org, linux-kernel@...r.kernel.org,
        linux-pm@...r.kernel.org
Subject: Re: [PATCH] x86: intel_epb: Set Alder Lake N and Raptor Lake P normal
 EPB

So, the tl;dr on this is:

	The EPB setting is fundamentally a classic power vs. performance
	knob.  This change helps power a bunch (200+mw) while having a
	negligible performance impact (<1% if that), so it's a great
	trade-off.

Right?