All of lore.kernel.org
 help / color / mirror / Atom feed
From: Julia Lawall <julia.lawall@inria.fr>
To: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Francisco Jerez <currojerez@riseup.net>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	Len Brown <lenb@kernel.org>,
	Viresh Kumar <viresh.kumar@linaro.org>,
	Linux PM <linux-pm@vger.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Ingo Molnar <mingo@redhat.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Juri Lelli <juri.lelli@redhat.com>,
	Vincent Guittot <vincent.guittot@linaro.org>
Subject: Re: cpufreq: intel_pstate: map utilization into the pstate range
Date: Thu, 6 Jan 2022 21:43:12 +0100 (CET)	[thread overview]
Message-ID: <alpine.DEB.2.22.394.2201062141290.3098@hadrien> (raw)
In-Reply-To: <1b2be990d5c31f62d9ce33aa2eb2530708d5607a.camel@linux.intel.com>

> > All the turbostat output and graphs I have sent recently were just
> > for
> > continuous spinning:
> >
> > for(;;);
> >
> > Now I am trying running for the percentage of the time corresponding
> > to
> > 10 / P for pstate P (ie 0.5 of the time for pstate 20), and then
> > sleeping,
> > to see whether one can just add the sleeping power consumption of the
> > machine to compute the efficiency as Rafael suggested.
> >
> Before doing comparison try freezing uncore.
>
> wrmsr -a 0x620 0x0808
>
> to Freeze uncore at 800MHz. Any other value is fine.

Thanks for the suggestion.  What is the impact of this?

julia

  reply	other threads:[~2022-01-06 20:43 UTC|newest]

Thread overview: 53+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-13 22:52 cpufreq: intel_pstate: map utilization into the pstate range Julia Lawall
2021-12-17 18:36 ` Rafael J. Wysocki
2021-12-17 19:32   ` Julia Lawall
2021-12-17 20:36     ` Francisco Jerez
2021-12-17 22:51       ` Julia Lawall
2021-12-18  0:04         ` Francisco Jerez
2021-12-18  6:12           ` Julia Lawall
2021-12-18 10:19             ` Francisco Jerez
2021-12-18 11:07               ` Julia Lawall
2021-12-18 22:12                 ` Francisco Jerez
2021-12-19  6:42                   ` Julia Lawall
2021-12-19 14:19                     ` Rafael J. Wysocki
2021-12-19 14:30                       ` Rafael J. Wysocki
2021-12-19 21:47                       ` Julia Lawall
2021-12-19 22:10                     ` Francisco Jerez
2021-12-19 22:41                       ` Julia Lawall
2021-12-19 23:31                         ` Francisco Jerez
2021-12-21 17:04                       ` Rafael J. Wysocki
2021-12-21 23:56                         ` Francisco Jerez
2021-12-22 14:54                           ` Rafael J. Wysocki
2021-12-24 11:08                             ` Julia Lawall
2021-12-28 16:58                           ` Julia Lawall
2021-12-28 17:40                             ` Rafael J. Wysocki
2021-12-28 17:46                               ` Julia Lawall
2021-12-28 18:06                                 ` Rafael J. Wysocki
2021-12-28 18:16                                   ` Julia Lawall
2021-12-29  9:13                                   ` Julia Lawall
2021-12-30 17:03                                     ` Rafael J. Wysocki
2021-12-30 17:54                                       ` Julia Lawall
2021-12-30 17:58                                         ` Rafael J. Wysocki
2021-12-30 18:20                                           ` Julia Lawall
2021-12-30 18:37                                             ` Rafael J. Wysocki
2021-12-30 18:44                                               ` Julia Lawall
2022-01-03 15:50                                                 ` Rafael J. Wysocki
2022-01-03 16:41                                                   ` Julia Lawall
2022-01-03 18:23                                                   ` Julia Lawall
2022-01-03 19:58                                                     ` Rafael J. Wysocki
2022-01-03 20:51                                                       ` Julia Lawall
2022-01-04 14:09                                                         ` Rafael J. Wysocki
2022-01-04 15:49                                                           ` Julia Lawall
2022-01-04 19:22                                                             ` Rafael J. Wysocki
2022-01-05 20:19                                                               ` Julia Lawall
2022-01-05 23:46                                                                 ` Francisco Jerez
2022-01-06 19:49                                                                   ` Julia Lawall
2022-01-06 20:28                                                                     ` Srinivas Pandruvada
2022-01-06 20:43                                                                       ` Julia Lawall [this message]
2022-01-06 21:55                                                                         ` srinivas pandruvada
2022-01-06 21:58                                                                           ` Julia Lawall
2022-01-05  0:38                                                         ` Francisco Jerez
2021-12-19 14:14     ` Rafael J. Wysocki
2021-12-19 17:03       ` Julia Lawall
2021-12-19 22:30         ` Francisco Jerez
2021-12-21 18:10         ` Rafael J. Wysocki

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=alpine.DEB.2.22.394.2201062141290.3098@hadrien \
    --to=julia.lawall@inria.fr \
    --cc=currojerez@riseup.net \
    --cc=juri.lelli@redhat.com \
    --cc=lenb@kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-pm@vger.kernel.org \
    --cc=mingo@redhat.com \
    --cc=peterz@infradead.org \
    --cc=rafael@kernel.org \
    --cc=srinivas.pandruvada@linux.intel.com \
    --cc=vincent.guittot@linaro.org \
    --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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.