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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?
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