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From: "Rafael J. Wysocki" <rafael@kernel.org>
To: Artem Bityutskiy <dedekind1@gmail.com>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>,
	Guilhem Lettron <guilhem@barpilot.io>,
	Zhang Rui <rui.zhang@intel.com>,
	Jacob Pan <jacob.jun.pan@linux.intel.com>,
	Len Brown <lenb@kernel.org>, Linux PM <linux-pm@vger.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] intel_idle: Add ICL support
Date: Wed, 26 Aug 2020 18:43:52 +0200	[thread overview]
Message-ID: <CAJZ5v0gPY+7YBeWwszoNBwsbKLFOEeuLaekdX62_gvbHXB8xoA@mail.gmail.com> (raw)
In-Reply-To: <e9e6823d63fe2b9938e43a14c136b89aec0c503b.camel@gmail.com>

On Wed, Aug 26, 2020 at 6:39 PM Artem Bityutskiy <dedekind1@gmail.com> wrote:
>
> On Wed, 2020-08-26 at 18:02 +0200, Rafael J. Wysocki wrote:
> > To that end, I would try to upgrade the graphics firmware and see if
> > you can get some nonzero PC8 residency then.
>
> I am curious, somehow that patch makes a difference.

It does make a difference, because it makes the processor spend more
time in PC2.  Which very well may be because the processor cannot
enter deeper C-states.

  reply	other threads:[~2020-08-26 16:44 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-26 12:04 [PATCH] intel_idle: Add ICL support Guilhem Lettron
2020-08-26 12:43 ` Rafael J. Wysocki
2020-08-26 13:03   ` Guilhem Lettron
2020-08-26 13:09     ` Artem Bityutskiy
2020-08-26 13:19       ` Guilhem Lettron
2020-08-26 13:20       ` Rafael J. Wysocki
2020-08-26 13:16     ` Artem Bityutskiy
2020-08-26 13:18       ` Artem Bityutskiy
2020-08-26 13:21         ` Rafael J. Wysocki
2020-08-26 13:32         ` Guilhem Lettron
2020-08-26 13:41           ` Zhang Rui
2020-08-26 14:04             ` Guilhem Lettron
2020-08-26 16:02               ` Rafael J. Wysocki
2020-08-26 16:21                 ` Rafael J. Wysocki
2020-08-26 16:39                 ` Artem Bityutskiy
2020-08-26 16:43                   ` Rafael J. Wysocki [this message]
2020-08-26 16:46                     ` Guilhem Lettron
2020-08-26 17:00                       ` Rafael J. Wysocki
2020-08-26 17:47                         ` Zhang Rui
2020-08-26 16:52                     ` Artem Bityutskiy
2020-08-26 16:19               ` Artem Bityutskiy
2020-08-26 16:25                 ` Artem Bityutskiy
2020-08-26 16:28                   ` Artem Bityutskiy
2020-08-26 16:41                 ` Rafael J. Wysocki
     [not found]   ` <CAGX5Wg0655U71nFcaAJXmj1XMA3MjnCVn=q1Pf=7LLyryHhroQ@mail.gmail.com>
2020-08-26 13:17     ` Rafael J. Wysocki
2020-08-26 13:34       ` Guilhem Lettron

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