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Tue, 09 Jan 2024 03:24:22 -0800 (PST) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: <20240108134843.429769-1-vincent.guittot@linaro.org> <20240108134843.429769-2-vincent.guittot@linaro.org> <158a8c60-cb54-43c1-8232-6a0a46cc6d42@arm.com> In-Reply-To: <158a8c60-cb54-43c1-8232-6a0a46cc6d42@arm.com> From: Vincent Guittot Date: Tue, 9 Jan 2024 12:24:11 +0100 Message-ID: Subject: Re: [PATCH v3 1/5] cpufreq: Add a cpufreq pressure feedback for the scheduler To: Dietmar Eggemann Cc: linux@armlinux.org.uk, catalin.marinas@arm.com, will@kernel.org, sudeep.holla@arm.com, rafael@kernel.org, viresh.kumar@linaro.org, agross@kernel.org, andersson@kernel.org, konrad.dybcio@linaro.org, mingo@redhat.com, peterz@infradead.org, juri.lelli@redhat.com, rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de, bristot@redhat.com, vschneid@redhat.com, lukasz.luba@arm.com, rui.zhang@intel.com, mhiramat@kernel.org, daniel.lezcano@linaro.org, amit.kachhap@gmail.com, corbet@lwn.net, gregkh@linuxfoundation.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-doc@vger.kernel.org, qyousef@layalina.io Content-Type: text/plain; charset="UTF-8" On Mon, 8 Jan 2024 at 17:35, Dietmar Eggemann wrote: > > On 08/01/2024 14:48, Vincent Guittot wrote: > > Provide to the scheduler a feedback about the temporary max available > > capacity. Unlike arch_update_thermal_pressure, this doesn't need to be > > filtered as the pressure will happen for dozens ms or more. > > Is this then related to the 'medium pace system pressure' you mentioned > in your OSPM '23 talk? Sorry I forgot to answer this question. Yes this is the medium pace system pressure that I mentioned at OSPM'23 > > >