From: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
To: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: "Peter Zijlstra (Intel)" <peterz@infradead.org>,
Juri Lelli <juri.lelli@redhat.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
Ricardo Neri <ricardo.neri@intel.com>,
"Ravi V. Shankar" <ravi.v.shankar@intel.com>,
Ben Segall <bsegall@google.com>,
Daniel Bristot de Oliveira <bristot@redhat.com>,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
Len Brown <len.brown@intel.com>, Mel Gorman <mgorman@suse.de>,
"Rafael J. Wysocki" <rafael.j.wysocki@intel.com>,
Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>,
Steven Rostedt <rostedt@goodmis.org>,
Tim Chen <tim.c.chen@linux.intel.com>,
Valentin Schneider <vschneid@redhat.com>,
Lukasz Luba <lukasz.luba@arm.com>,
Ionela Voinescu <ionela.voinescu@arm.com>,
x86@kernel.org,
"Joel Fernandes (Google)" <joel@joelfernandes.org>,
linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org,
"Tim C . Chen" <tim.c.chen@intel.com>
Subject: Re: [PATCH v3 16/24] thermal: intel: hfi: Define a default class for unclassified tasks
Date: Tue, 28 Mar 2023 16:49:20 -0700 [thread overview]
Message-ID: <20230328234920.GE8958@ranerica-svr.sc.intel.com> (raw)
In-Reply-To: <CAJZ5v0iMkADWu2P_cn9+8FV4HR+0eDF2uAwEMAZwTAMuE3kBkA@mail.gmail.com>
On Mon, Mar 27, 2023 at 06:51:33PM +0200, Rafael J. Wysocki wrote:
> On Tue, Feb 7, 2023 at 6:02 AM Ricardo Neri
> <ricardo.neri-calderon@linux.intel.com> wrote:
> >
> > A task may be unclassified if it has been recently created, spend most of
> > its lifetime sleeping, or hardware has not provided a classification.
> >
> > Most tasks will be eventually classified as scheduler's IPC class 1
> > (HFI class 0). This class corresponds to the capabilities in the legacy,
> > classless, HFI table.
> >
> > IPC class 1 is a reasonable choice until hardware provides an actual
> > classification. Meanwhile, the scheduler will place classes of tasks with
> > higher IPC scores on higher-performance CPUs.
> >
> > Cc: Ben Segall <bsegall@google.com>
> > Cc: Daniel Bristot de Oliveira <bristot@redhat.com>
> > Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
> > Cc: Ionela Voinescu <ionela.voinescu@arm.com>
> > Cc: Joel Fernandes (Google) <joel@joelfernandes.org>
> > Cc: Len Brown <len.brown@intel.com>
> > Cc: Lukasz Luba <lukasz.luba@arm.com>
> > Cc: Mel Gorman <mgorman@suse.de>
> > Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> > Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
> > Cc: Steven Rostedt <rostedt@goodmis.org>
> > Cc: Tim C. Chen <tim.c.chen@intel.com>
> > Cc: Valentin Schneider <vschneid@redhat.com>
> > Cc: x86@kernel.org
> > Cc: linux-pm@vger.kernel.org
> > Cc: linux-kernel@vger.kernel.org
> > Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
>
> Fine with me, so
>
> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Thank you Rafael!
next prev parent reply other threads:[~2023-03-28 23:38 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-07 5:10 [PATCH v3 00/24] sched: Introduce classes of tasks for load balance Ricardo Neri
2023-02-07 5:10 ` [PATCH v3 01/24] sched/task_struct: Introduce IPC classes of tasks Ricardo Neri
2023-02-07 5:10 ` [PATCH v3 02/24] sched: Add interfaces for IPC classes Ricardo Neri
2023-02-07 5:10 ` [PATCH v3 03/24] sched/core: Initialize the IPC class of a new task Ricardo Neri
2023-02-07 5:10 ` [PATCH v3 04/24] sched/core: Add user_tick as argument to scheduler_tick() Ricardo Neri
2023-02-07 5:10 ` [PATCH v3 05/24] sched/core: Update the IPC class of the current task Ricardo Neri
2023-02-07 5:10 ` [PATCH v3 06/24] sched/fair: Collect load-balancing stats for IPC classes Ricardo Neri
2023-02-07 5:10 ` [PATCH v3 07/24] sched/fair: Compute IPC class scores for load balancing Ricardo Neri
2023-03-28 10:00 ` Vincent Guittot
2023-03-30 2:07 ` Ricardo Neri
2023-03-31 12:20 ` Vincent Guittot
2023-04-17 22:52 ` Ricardo Neri
2023-02-07 5:10 ` [PATCH v3 08/24] sched/fair: Use IPCC stats to break ties between asym_packing sched groups Ricardo Neri
2023-02-07 5:10 ` [PATCH v3 09/24] sched/fair: Use IPCC stats to break ties between fully_busy SMT groups Ricardo Neri
2023-02-07 5:10 ` [PATCH v3 10/24] sched/fair: Use IPCC scores to select a busiest runqueue Ricardo Neri
2023-03-28 10:03 ` Vincent Guittot
2023-03-30 2:14 ` Ricardo Neri
2023-03-31 12:23 ` Vincent Guittot
2023-04-17 23:01 ` Ricardo Neri
2023-02-07 5:10 ` [PATCH v3 11/24] thermal: intel: hfi: Introduce Intel Thread Director classes Ricardo Neri
2023-03-27 16:31 ` Rafael J. Wysocki
2023-03-28 23:42 ` Ricardo Neri
2023-02-07 5:10 ` [PATCH v3 12/24] x86/cpufeatures: Add the Intel Thread Director feature definitions Ricardo Neri
2023-02-07 5:10 ` [PATCH v3 13/24] thermal: intel: hfi: Store per-CPU IPCC scores Ricardo Neri
2023-03-27 16:37 ` Rafael J. Wysocki
2023-03-28 23:43 ` Ricardo Neri
2023-03-29 12:08 ` Rafael J. Wysocki
2023-03-30 2:15 ` Ricardo Neri
2023-02-07 5:10 ` [PATCH v3 14/24] thermal: intel: hfi: Update the IPC class of the current task Ricardo Neri
2023-03-27 16:42 ` Rafael J. Wysocki
2023-03-28 23:41 ` Ricardo Neri
2023-03-29 12:13 ` Rafael J. Wysocki
2023-03-30 3:06 ` Ricardo Neri
2023-02-07 5:10 ` [PATCH v3 15/24] thermal: intel: hfi: Report the IPC class score of a CPU Ricardo Neri
2023-03-27 16:50 ` Rafael J. Wysocki
2023-03-28 23:41 ` Ricardo Neri
2023-03-29 12:17 ` Rafael J. Wysocki
2023-03-31 2:07 ` Ricardo Neri
2023-02-07 5:10 ` [PATCH v3 16/24] thermal: intel: hfi: Define a default class for unclassified tasks Ricardo Neri
2023-03-27 16:51 ` Rafael J. Wysocki
2023-03-28 23:49 ` Ricardo Neri [this message]
2023-02-07 5:10 ` [PATCH v3 17/24] thermal: intel: hfi: Enable the Intel Thread Director Ricardo Neri
2023-03-27 16:53 ` Rafael J. Wysocki
2023-03-28 23:50 ` Ricardo Neri
2023-02-07 5:10 ` [PATCH v3 18/24] sched/task_struct: Add helpers for IPC classification Ricardo Neri
2023-02-07 5:11 ` [PATCH v3 19/24] sched/core: Initialize helpers of task classification Ricardo Neri
2023-02-07 5:11 ` [PATCH v3 20/24] sched/fair: Introduce sched_smt_siblings_idle() Ricardo Neri
2023-02-07 5:11 ` [PATCH v3 21/24] thermal: intel: hfi: Implement model-specific checks for task classification Ricardo Neri
2023-03-27 17:03 ` Rafael J. Wysocki
2023-03-29 0:15 ` Ricardo Neri
2023-03-29 12:21 ` Rafael J. Wysocki
2023-03-30 2:41 ` Ricardo Neri
2023-03-31 17:08 ` Rafael J. Wysocki
2023-04-03 14:12 ` Ricardo Neri
2023-02-07 5:11 ` [PATCH v3 22/24] x86/cpufeatures: Add feature bit for HRESET Ricardo Neri
2023-02-07 5:11 ` [PATCH v3 23/24] x86/hreset: Configure history reset Ricardo Neri
2023-02-07 5:11 ` [PATCH v3 24/24] x86/process: Reset hardware history in context switch Ricardo Neri
2023-03-05 22:49 ` [PATCH v3 00/24] sched: Introduce classes of tasks for load balance Ricardo Neri
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