linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Peter Zijlstra <peterz@infradead.org>
To: Ingo Molnar <mingo@kernel.org>
Cc: Thara Gopinath <thara.gopinath@linaro.org>,
	mingo@redhat.com, rui.zhang@intel.com,
	linux-kernel@vger.kernel.org, amit.kachhap@gmail.com,
	viresh.kumar@linaro.org, javi.merino@kernel.org,
	edubezval@gmail.com, daniel.lezcano@linaro.org,
	vincent.guittot@linaro.org, nicolas.dechesne@linaro.org,
	bjorn.andersson@linaro.org, dietmar.eggemann@arm.com,
	Quentin Perret <quentin.perret@arm.com>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>
Subject: Re: [PATCH V2 0/3] Introduce Thermal Pressure
Date: Wed, 24 Apr 2019 18:34:24 +0200	[thread overview]
Message-ID: <20190424163424.GG4038@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20190417182932.GB5140@gmail.com>

On Wed, Apr 17, 2019 at 08:29:32PM +0200, Ingo Molnar wrote:
> Assuming PeterZ & Rafael & Quentin doesn't hate the whole thermal load 
> tracking approach. 

I seem to remember competing proposals, and have forgotten everything
about them; the cover letter also didn't have references to them or
mention them in any way.

As to the averaging and period, I personally prefer a PELT signal with
the windows lined up, if that really is too short a window, then a PELT
like signal with a natural multiple of the PELT period would make sense,
such that the windows still line up nicely.

Mixing different averaging methods and non-aligned windows just makes me
uncomfortable.


  parent reply	other threads:[~2019-04-24 16:34 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-16 19:38 [PATCH V2 0/3] Introduce Thermal Pressure Thara Gopinath
2019-04-16 19:38 ` [PATCH V2 1/3] Calculate " Thara Gopinath
2019-04-18 10:14   ` Quentin Perret
2019-04-24  4:13     ` Thara Gopinath
2019-04-24 16:38   ` Peter Zijlstra
2019-04-24 16:45   ` Peter Zijlstra
2019-04-25 10:57   ` Quentin Perret
2019-04-25 12:45     ` Vincent Guittot
2019-04-25 12:47       ` Quentin Perret
2019-04-26 14:17       ` Thara Gopinath
2019-05-08 12:41         ` Quentin Perret
2019-04-16 19:38 ` [PATCH V2 2/3] sched/fair: update cpu_capcity to reflect thermal pressure Thara Gopinath
2019-04-16 19:38 ` [PATCH V3 3/3] thermal/cpu-cooling: Update thermal pressure in case of a maximum frequency capping Thara Gopinath
2019-04-18  9:48   ` Quentin Perret
2019-04-23 22:38     ` Thara Gopinath
2019-04-24 15:56       ` Ionela Voinescu
2019-04-26 10:24         ` Thara Gopinath
2019-04-25 10:45       ` Quentin Perret
2019-04-25 12:04         ` Vincent Guittot
2019-04-25 12:50           ` Quentin Perret
2019-04-26 13:47         ` Thara Gopinath
2019-04-24 16:47   ` Peter Zijlstra
2019-04-17  5:36 ` [PATCH V2 0/3] Introduce Thermal Pressure Ingo Molnar
2019-04-17  5:55   ` Ingo Molnar
2019-04-17 17:28     ` Thara Gopinath
2019-04-17 17:18   ` Thara Gopinath
2019-04-17 18:29     ` Ingo Molnar
2019-04-18  0:07       ` Thara Gopinath
2019-04-18  9:22       ` Quentin Perret
2019-04-24 16:34       ` Peter Zijlstra [this message]
2019-04-25 17:33         ` Ingo Molnar
2019-04-25 17:44           ` Ingo Molnar
2019-04-26  7:08             ` Vincent Guittot
2019-04-26  8:35               ` Ingo Molnar
2019-04-24 15:57 ` Ionela Voinescu
2019-04-26 11:50   ` Thara Gopinath
2019-04-26 14:46     ` Ionela Voinescu
2019-04-29 13:29 ` Ionela Voinescu
2019-04-30 14:39   ` Ionela Voinescu
2019-04-30 16:10     ` Thara Gopinath
2019-05-02 10:44       ` Ionela Voinescu
2019-04-30 15:57   ` Thara Gopinath
2019-04-30 16:02     ` Thara Gopinath

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=20190424163424.GG4038@hirez.programming.kicks-ass.net \
    --to=peterz@infradead.org \
    --cc=amit.kachhap@gmail.com \
    --cc=bjorn.andersson@linaro.org \
    --cc=daniel.lezcano@linaro.org \
    --cc=dietmar.eggemann@arm.com \
    --cc=edubezval@gmail.com \
    --cc=javi.merino@kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mingo@kernel.org \
    --cc=mingo@redhat.com \
    --cc=nicolas.dechesne@linaro.org \
    --cc=quentin.perret@arm.com \
    --cc=rjw@rjwysocki.net \
    --cc=rui.zhang@intel.com \
    --cc=thara.gopinath@linaro.org \
    --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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).