public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
From: "Rafael J. Wysocki" <rjw@rjwysocki.net>
To: Linux PM <linux-pm@vger.kernel.org>,
	Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	Viresh Kumar <viresh.kumar@linaro.org>,
	Giovanni Gherdovich <ggherdovich@suse.cz>,
	Doug Smythies <dsmythies@telus.net>
Subject: [PATCH 0/2] cpufreq: intel_pstate: Run in the passive mode by default on systems without HWP
Date: Sat, 28 Mar 2020 13:54:35 +0100	[thread overview]
Message-ID: <2016232.ihCVsphvri@kreacher> (raw)

Hi All,

These two patches modify the intel_pstate driver to run in the passive mode by
default on systems without HWP (refer to the changelog of patch [2/2] for the
motivation part).

Internal testing of the system performance in 5.6-rc indicates that the
difference between the active mode with the powersave scaling algorithm and the
passive mode with the schedutil governor should be negligible for the majority
of users, so it should be safe to change the default behavior of the driver as
per the above.

Patch [1/2] makes changes to select the schedutil governor and set it as the
default one when intel_pstate is selected in Kconfig.

Patch [2/2] changes intel_pstate to start in the passive by default if HWP is
not supported (or if it is disabled via the kernel command line).

Please refer to the patch changelogs for more information.

Thanks!




             reply	other threads:[~2020-03-28 12:58 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-28 12:54 Rafael J. Wysocki [this message]
2020-03-28 12:57 ` [PATCH 1/2] cpufreq: intel_pstate: Select schedutil as the default governor Rafael J. Wysocki
2020-03-28 12:57 ` [PATCH 2/2] cpufreq: intel_pstate: Use passive mode by default without HWP Rafael J. Wysocki
2020-07-09 21:01   ` Doug Smythies
2020-07-13 12:16     ` Rafael J. Wysocki
2020-04-07 15:35 ` [PATCH 0/2] cpufreq: intel_pstate: Run in the passive mode by default on systems " Giovanni Gherdovich

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=2016232.ihCVsphvri@kreacher \
    --to=rjw@rjwysocki.net \
    --cc=dsmythies@telus.net \
    --cc=ggherdovich@suse.cz \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-pm@vger.kernel.org \
    --cc=rafael@kernel.org \
    --cc=srinivas.pandruvada@linux.intel.com \
    --cc=viresh.kumar@linaro.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox