From: Yuyang Du <yuyang.du@intel.com>
To: Morten Rasmussen <morten.rasmussen@arm.com>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>,
"peterz@infradead.org" <peterz@infradead.org>,
"mingo@kernel.org" <mingo@kernel.org>,
"rjw@rjwysocki.net" <rjw@rjwysocki.net>,
"vincent.guittot@linaro.org" <vincent.guittot@linaro.org>,
"daniel.lezcano@linaro.org" <daniel.lezcano@linaro.org>,
"preeti@linux.vnet.ibm.com" <preeti@linux.vnet.ibm.com>,
"Dietmar.Eggemann@arm.com" <Dietmar.Eggemann@arm.com>,
"pjt@google.com" <pjt@google.com>
Subject: Re: [RFCv2 PATCH 08/23] sched: Aggregate unweighted load contributed by task entities on parenting cfs_rq
Date: Fri, 4 Jul 2014 07:50:45 +0800 [thread overview]
Message-ID: <20140703235045.GB4881@intel.com> (raw)
In-Reply-To: <1404404770-323-9-git-send-email-morten.rasmussen@arm.com>
On Fri, Jul 04, 2014 at 12:25:55AM +0800, Morten Rasmussen wrote:
> From: Dietmar Eggemann <dietmar.eggemann@arm.com>
>
> Energy aware scheduling relies on cpu utilization and to be able to
> maintain it, we need a per run queue signal of the sum of the
> unweighted, i.e. not scaled with task priority, load contribution of
> runnable task entries.
>
> The unweighted runnable load on a run queue is maintained alongside the
> existing (weighted) runnable load.
>
> This patch is the unweighted counterpart of "sched: Aggregate load
> contributed by task entities on parenting cfs_rq" (commit id
> 2dac754e10a5).
>
Hi Dietmar and Morten,
You may or may not have noticed my patch the other day:
sched: Rewrite per entity runnable load average tracking
With this new load average tracking, unweighted load average will be very much
simplifed to do.
Thanks,
Yuyang
next prev parent reply other threads:[~2014-07-03 23:50 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-03 16:25 [RFCv2 PATCH 00/23] sched: Energy cost model for energy-aware scheduling Morten Rasmussen
2014-07-03 16:25 ` [RFCv2 PATCH 01/23] sched: Documentation for scheduler energy cost model Morten Rasmussen
2014-07-24 0:53 ` Rafael J. Wysocki
2014-07-24 7:26 ` Peter Zijlstra
2014-07-24 14:28 ` Rafael J. Wysocki
2014-07-24 17:57 ` Morten Rasmussen
2014-07-03 16:25 ` [RFCv2 PATCH 02/23] sched: Make energy awareness a sched feature Morten Rasmussen
2014-07-03 16:25 ` [RFCv2 PATCH 03/23] sched: Introduce energy data structures Morten Rasmussen
2014-07-03 16:25 ` [RFCv2 PATCH 04/23] sched: Allocate and initialize " Morten Rasmussen
2014-07-03 16:25 ` [RFCv2 PATCH 05/23] sched: Add energy procfs interface Morten Rasmussen
2014-07-03 16:25 ` [RFCv2 PATCH 06/23] arm: topology: Define TC2 energy and provide it to the scheduler Morten Rasmussen
2014-07-03 16:25 ` [RFCv2 PATCH 07/23] sched: Introduce system-wide sched_energy Morten Rasmussen
2014-07-03 16:25 ` [RFCv2 PATCH 08/23] sched: Aggregate unweighted load contributed by task entities on parenting cfs_rq Morten Rasmussen
2014-07-03 23:50 ` Yuyang Du [this message]
2014-07-03 16:25 ` [RFCv2 PATCH 09/23] sched: Maintain the unweighted load contribution of blocked entities Morten Rasmussen
2014-07-03 16:25 ` [RFCv2 PATCH 10/23] sched: Account for blocked unweighted load waking back up Morten Rasmussen
2014-07-03 16:25 ` [RFCv2 PATCH 11/23] sched: Introduce an unweighted cpu_load array Morten Rasmussen
2014-07-03 16:25 ` [RFCv2 PATCH 12/23] sched: Rename weighted_cpuload() to cpu_load() Morten Rasmussen
2014-07-03 16:26 ` [RFCv2 PATCH 13/23] sched: Introduce weighted/unweighted switch in load related functions Morten Rasmussen
2014-07-03 16:26 ` [RFCv2 PATCH 14/23] sched: Introduce SD_SHARE_CAP_STATES sched_domain flag Morten Rasmussen
2014-07-03 16:26 ` [RFCv2 PATCH 15/23] sched, cpufreq: Introduce current cpu compute capacity into scheduler Morten Rasmussen
2014-07-03 16:26 ` [RFCv2 PATCH 16/23] sched, cpufreq: Current compute capacity hack for ARM TC2 Morten Rasmussen
2014-07-03 16:26 ` [RFCv2 PATCH 17/23] sched: Likely idle state statistics placeholder Morten Rasmussen
2014-07-03 16:26 ` [RFCv2 PATCH 18/23] sched: Energy model functions Morten Rasmussen
2014-07-03 16:26 ` [RFCv2 PATCH 19/23] sched: Task wakeup tracking Morten Rasmussen
2014-07-03 16:26 ` [RFCv2 PATCH 20/23] sched: Take task wakeups into account in energy estimates Morten Rasmussen
2014-07-03 16:26 ` [RFCv2 PATCH 21/23] sched: Use energy model in select_idle_sibling Morten Rasmussen
2014-07-03 16:26 ` [RFCv2 PATCH 22/23] sched: Use energy to guide wakeup task placement Morten Rasmussen
2014-07-03 16:26 ` [RFCv2 PATCH 23/23] sched: Use energy model in load balance path Morten Rasmussen
2014-07-03 23:19 ` [RFCv2 PATCH 00/23] sched: Energy cost model for energy-aware scheduling Yuyang Du
2014-07-04 11:06 ` Morten Rasmussen
2014-07-04 16:03 ` Anca Emanuel
2014-07-06 19:05 ` Yuyang Du
2014-07-07 14:16 ` Morten Rasmussen
2014-07-08 0:23 ` Yuyang Du
2014-07-08 9:28 ` Morten Rasmussen
2014-07-04 16:55 ` Catalin Marinas
2014-07-07 14:00 ` Morten Rasmussen
2014-07-07 15:42 ` Peter Zijlstra
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