From: Peter Zijlstra <peterz@infradead.org>
To: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Quentin Perret <quentin.perret@arm.com>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
linux-kernel <linux-kernel@vger.kernel.org>,
"open list:THERMAL" <linux-pm@vger.kernel.org>,
"gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>,
Ingo Molnar <mingo@redhat.com>,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
Morten Rasmussen <morten.rasmussen@arm.com>,
Chris Redpath <chris.redpath@arm.com>,
Patrick Bellasi <patrick.bellasi@arm.com>,
Valentin Schneider <valentin.schneider@arm.com>,
Thara Gopinath <thara.gopinath@linaro.org>,
viresh kumar <viresh.kumar@linaro.org>,
Todd Kjos <tkjos@google.com>,
Joel Fernandes <joel@joelfernandes.org>,
"Cc: Steve Muckle" <smuckle@google.com>,
adharmap@quicinc.com, "Kannan, Saravana" <skannan@quicinc.com>,
pkondeti@codeaurora.org, Juri Lelli <juri.lelli@redhat.com>,
Eduardo Valentin <edubezval@gmail.com>,
Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>,
currojerez@riseup.net, Javi Merino <javi.merino@kernel.org>
Subject: Re: [RFC PATCH v4 03/12] PM: Introduce an Energy Model management framework
Date: Fri, 6 Jul 2018 12:03:53 +0200 [thread overview]
Message-ID: <20180706100353.GU2476@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <CAKfTPtCxt-O8uMOYgAjY7daujXwXyZQ-3BYe=DONL7R95T7nmQ@mail.gmail.com>
On Fri, Jul 06, 2018 at 11:57:37AM +0200, Vincent Guittot wrote:
>
> IIUC the formula above, you consider that all CPUs in a frequency
> domain has the same capacity. This sounds a reasonable assumption but
> it would be good to write that somewhere
Yes, I think there used to be a WARN and kill EM for that, but I cannot
seem to locate that in the current code.
WARNING: multiple messages have this Message-ID (diff)
From: Peter Zijlstra <peterz@infradead.org>
To: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Quentin Perret <quentin.perret@arm.com>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
linux-kernel <linux-kernel@vger.kernel.org>,
"open list:THERMAL" <linux-pm@vger.kernel.org>,
"gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>,
Ingo Molnar <mingo@redhat.com>,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
Morten Rasmussen <morten.rasmussen@arm.com>,
Chris Redpath <chris.redpath@arm.com>,
Patrick Bellasi <patrick.bellasi@arm.com>,
Valentin Schneider <valentin.schneider@arm.com>,
Thara Gopinath <thara.gopinath@linaro.org>,
viresh kumar <viresh.kumar@linaro.org>,
Todd Kjos <tkjos@google.com>,
Joel Fernandes <joel@joelfernandes.org>,
"Cc: Steve Muckle" <smuckle@google.com>,
adharmap@quicinc.com, "Kannan, Saravana" <skannan@quicinc.com>,
pkondeti@codeaurora.o
Subject: Re: [RFC PATCH v4 03/12] PM: Introduce an Energy Model management framework
Date: Fri, 6 Jul 2018 12:03:53 +0200 [thread overview]
Message-ID: <20180706100353.GU2476@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <CAKfTPtCxt-O8uMOYgAjY7daujXwXyZQ-3BYe=DONL7R95T7nmQ@mail.gmail.com>
On Fri, Jul 06, 2018 at 11:57:37AM +0200, Vincent Guittot wrote:
>
> IIUC the formula above, you consider that all CPUs in a frequency
> domain has the same capacity. This sounds a reasonable assumption but
> it would be good to write that somewhere
Yes, I think there used to be a WARN and kill EM for that, but I cannot
seem to locate that in the current code.
next prev parent reply other threads:[~2018-07-06 10:06 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-28 11:40 [RFC PATCH v4 00/12] Energy Aware Scheduling Quentin Perret
2018-06-28 11:40 ` [RFC PATCH v4 01/12] sched: Relocate arch_scale_cpu_capacity Quentin Perret
2018-06-28 11:40 ` [RFC PATCH v4 02/12] sched/cpufreq: Factor out utilization to frequency mapping Quentin Perret
2018-06-28 11:40 ` [RFC PATCH v4 03/12] PM: Introduce an Energy Model management framework Quentin Perret
2018-07-05 14:31 ` Peter Zijlstra
2018-07-05 15:24 ` Quentin Perret
2018-07-05 14:39 ` Peter Zijlstra
2018-07-05 15:09 ` Quentin Perret
2018-07-05 15:06 ` Peter Zijlstra
2018-07-05 15:32 ` Quentin Perret
2018-07-06 9:57 ` Vincent Guittot
2018-07-06 9:57 ` Vincent Guittot
2018-07-06 10:03 ` Peter Zijlstra [this message]
2018-07-06 10:03 ` Peter Zijlstra
2018-07-06 10:06 ` Quentin Perret
2018-07-06 10:06 ` Quentin Perret
2018-07-06 10:05 ` Quentin Perret
2018-07-06 10:05 ` Quentin Perret
2018-07-09 18:07 ` Dietmar Eggemann
2018-07-10 8:32 ` Quentin Perret
2018-07-16 10:29 ` Quentin Perret
2018-07-17 8:57 ` Dietmar Eggemann
2018-07-17 14:19 ` Quentin Perret
2018-07-17 16:00 ` Dietmar Eggemann
2018-06-28 11:40 ` [RFC PATCH v4 04/12] PM / EM: Expose the Energy Model in sysfs Quentin Perret
2018-06-28 11:40 ` [RFC PATCH v4 05/12] sched/topology: Reference the Energy Model of CPUs when available Quentin Perret
2018-07-05 17:29 ` Peter Zijlstra
2018-07-05 17:48 ` Quentin Perret
2018-07-05 17:33 ` Peter Zijlstra
2018-07-05 17:50 ` Quentin Perret
2018-07-05 18:14 ` Peter Zijlstra
2018-06-28 11:40 ` [RFC PATCH v4 06/12] sched/topology: Lowest energy aware balancing sched_domain level pointer Quentin Perret
2018-06-28 11:40 ` [RFC PATCH v4 07/12] sched/topology: Introduce sched_energy_present static key Quentin Perret
2018-06-28 11:40 ` [RFC PATCH v4 08/12] sched: Add over-utilization/tipping point indicator Quentin Perret
2018-07-06 11:32 ` Peter Zijlstra
2018-07-06 13:20 ` Quentin Perret
2018-07-06 13:24 ` Peter Zijlstra
2018-07-06 13:40 ` Quentin Perret
2018-07-06 11:39 ` Peter Zijlstra
2018-07-06 11:41 ` Peter Zijlstra
2018-07-06 11:49 ` Valentin Schneider
2018-06-28 11:40 ` [RFC PATCH v4 09/12] sched/fair: Introduce an energy estimation helper function Quentin Perret
2018-07-06 13:12 ` Peter Zijlstra
2018-07-06 15:12 ` Quentin Perret
2018-07-06 15:49 ` Peter Zijlstra
2018-07-06 17:04 ` Quentin Perret
2018-07-09 12:01 ` Peter Zijlstra
2018-07-09 15:28 ` Quentin Perret
2018-07-09 15:42 ` Peter Zijlstra
2018-07-09 16:07 ` Quentin Perret
2018-07-06 15:50 ` Peter Zijlstra
2018-06-28 11:40 ` [RFC PATCH v4 10/12] sched/fair: Select an energy-efficient CPU on task wake-up Quentin Perret
2018-06-28 11:40 ` [RFC PATCH v4 11/12] OPTIONAL: arch_topology: Start Energy Aware Scheduling Quentin Perret
2018-06-28 11:40 ` [RFC PATCH v4 12/12] OPTIONAL: cpufreq: dt: Register an Energy Model Quentin Perret
2018-07-06 10:10 ` Vincent Guittot
2018-07-06 10:10 ` Vincent Guittot
2018-07-06 10:18 ` Quentin Perret
2018-07-06 10:18 ` Quentin Perret
2018-07-30 15:53 ` Vincent Guittot
2018-07-30 15:53 ` Vincent Guittot
2018-07-30 16:20 ` Quentin Perret
2018-07-30 16:20 ` Quentin Perret
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