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From: Thara Gopinath <thara.gopinath@linaro.org>
To: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Ingo Molnar <mingo@redhat.com>,
	Peter Zijlstra <peterz@infradead.org>,
	ionela.voinescu@arm.com, vincent.guittot@linaro.org,
	dietmar.eggemann@arm.com, rui.zhang@intel.com,
	qperret@google.com, daniel.lezcano@linaro.org,
	viresh.kumar@linaro.org, rostedt@goodmis.org, will@kernel.org,
	catalin.marinas@arm.com, sudeep.holla@arm.com,
	juri.lelli@redhat.com, Jonathan Corbet <corbet@lwn.net>,
	LKML <linux-kernel@vger.kernel.org>,
	amit.kachhap@gmail.com, javi.merino@kernel.org,
	amit.kucheria@verdurent.com
Subject: Re: [Patch v10 0/9] Introduce Thermal Pressure
Date: Thu, 16 Apr 2020 09:40:13 -0400	[thread overview]
Message-ID: <51cdde9e-f124-8e19-693c-4accc6f2e948@linaro.org> (raw)
In-Reply-To: <CAP=VYLqWfqOZT6ec9cKyKOsOhu7HhVn2f_eU+ca006i4CV8R-w@mail.gmail.com>



On 4/14/20 11:57 AM, Paul Gortmaker wrote:
> On Fri, Feb 21, 2020 at 7:52 PM Thara Gopinath <thara.gopinath@linaro.org>
> wrote:
> 
>> Thermal governors can respond to an overheat event of a cpu by
>> capping the cpu's maximum possible frequency. This in turn
>> means that the maximum available compute capacity of the
>> cpu is restricted. But today in the kernel, task scheduler is
>> not notified of capping of maximum frequency of a cpu.
>> In other words, scheduler is unaware of maximum capacity
>> restrictions placed on a cpu due to thermal activity.
>> This patch series attempts to address this issue.
>>
> 
> I'm just seeing this now via -rc1 and "make oldconfig".
> 
> I'd suggest taking some of the above info and using it to
> create a Kconfig help text for the new option that was added.
Hi Paul,

I will send a patch adding some details to the Kconfig text.

-- 
Warm Regards
Thara

      parent reply	other threads:[~2020-04-16 14:00 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-22  0:52 [Patch v10 0/9] Introduce Thermal Pressure Thara Gopinath
2020-02-22  0:52 ` [Patch v10 1/9] sched/pelt: Add support to track thermal pressure Thara Gopinath
2020-02-22  0:59   ` Randy Dunlap
2020-02-22 18:27     ` Thara Gopinath
2020-02-22 18:50       ` Randy Dunlap
2020-02-24 14:33         ` Thara Gopinath
2020-02-25 15:47           ` Peter Zijlstra
2020-02-25 16:43             ` Thara Gopinath
2020-03-06 14:42   ` [tip: sched/core] " tip-bot2 for Thara Gopinath
2020-02-22  0:52 ` [Patch v10 2/9] sched/topology: Add hook to read per cpu " Thara Gopinath
2020-03-06 14:42   ` [tip: sched/core] sched/topology: Add callback to read per CPU " tip-bot2 for Thara Gopinath
2020-02-22  0:52 ` [Patch v10 3/9] drivers/base/arch_topology: Add infrastructure to store and update instantaneous " Thara Gopinath
2020-03-06 14:42   ` [tip: sched/core] " tip-bot2 for Thara Gopinath
2020-02-22  0:52 ` [Patch v10 4/9] arm64/topology: Populate arch_scale_thermal_pressure for arm64 platforms Thara Gopinath
2020-03-06 14:42   ` [tip: sched/core] arm64/topology: Populate arch_scale_thermal_pressure() " tip-bot2 for Thara Gopinath
2020-02-22  0:52 ` [Patch v10 5/9] arm/topology: Populate arch_scale_thermal_pressure for arm platforms Thara Gopinath
2020-03-06 14:42   ` [tip: sched/core] arm/topology: Populate arch_scale_thermal_pressure() for ARM platforms tip-bot2 for Thara Gopinath
2020-02-22  0:52 ` [Patch v10 6/9] sched/fair: Enable periodic update of average thermal pressure Thara Gopinath
2020-02-27  9:03   ` Amit Kucheria
2020-03-06 14:42   ` [tip: sched/core] " tip-bot2 for Thara Gopinath
2020-02-22  0:52 ` [Patch v10 7/9] sched/fair: update cpu_capacity to reflect " Thara Gopinath
2020-03-06 14:42   ` [tip: sched/core] sched/fair: Update " tip-bot2 for Thara Gopinath
2020-02-22  0:52 ` [Patch v10 8/9] thermal/cpu-cooling: Update thermal pressure in case of a maximum frequency capping Thara Gopinath
2020-03-06 14:42   ` [tip: sched/core] " tip-bot2 for Thara Gopinath
2020-02-22  0:52 ` [Patch v10 9/9] sched/fair: Enable tuning of decay period Thara Gopinath
2020-03-06 14:42   ` [tip: sched/core] " tip-bot2 for Thara Gopinath
2020-02-27  9:01 ` [Patch v10 0/9] Introduce Thermal Pressure Amit Kucheria
     [not found] ` <CAP=VYLqWfqOZT6ec9cKyKOsOhu7HhVn2f_eU+ca006i4CV8R-w@mail.gmail.com>
2020-04-16 13:40   ` Thara Gopinath [this message]

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