From: Tim Chen <tim.c.chen@linux.intel.com>
To: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>,
Ionela Voinescu <ionela.voinescu@arm.com>
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>,
Valentin Schneider <vschneid@redhat.com>,
Lukasz Luba <lukasz.luba@arm.com>, Zhao Liu <zhao1.liu@intel.com>,
"Yuan, Perry" <Perry.Yuan@amd.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>,
Zhao Liu <zhao1.liu@linux.intel.com>
Subject: Re: [PATCH v4 07/24] sched/fair: Compute IPC class scores for load balancing
Date: Mon, 26 Jun 2023 14:01:25 -0700 [thread overview]
Message-ID: <7ca035b73ebcce9fde270227a5b630b169ebdeaf.camel@linux.intel.com> (raw)
In-Reply-To: <20230625201155.GA3902@ranerica-svr.sc.intel.com>
On Sun, 2023-06-25 at 13:11 -0700, Ricardo Neri wrote:
>
> > > +
> > > + score_on_dst_cpu = arch_get_ipcc_score(sgs->min_ipcc, env->dst_cpu);
> > > +
> > > + /*
> > > + * Do not use IPC scores. sgs::ipcc_score_{after, before} will be zero
> > > + * and not used.
> > > + */
The comment is not matching the check below. If zero
is not used, the check should also reflect the case.
> > > + if (IS_ERR_VALUE(score_on_dst_cpu))
> > > + return;
> > > +
> > > + before = sgs->sum_score;
> > > + after = before - sgs->min_score;
> >
>
Tim
next prev parent reply other threads:[~2023-06-26 21:01 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-13 4:23 [PATCH v4 00/24] sched: Introduce classes of tasks for load balance Ricardo Neri
2023-06-13 4:23 ` [PATCH v4 01/24] sched/task_struct: Introduce IPC classes of tasks Ricardo Neri
2023-06-13 4:24 ` [PATCH v4 02/24] sched: Add interfaces for IPC classes Ricardo Neri
2023-06-13 4:24 ` [PATCH v4 03/24] sched/core: Initialize the IPC class of a new task Ricardo Neri
2023-06-13 4:24 ` [PATCH v4 04/24] sched/core: Add user_tick as argument to scheduler_tick() Ricardo Neri
2023-06-13 4:24 ` [PATCH v4 05/24] sched/core: Update the IPC class of the current task Ricardo Neri
2023-06-13 4:24 ` [PATCH v4 06/24] sched/fair: Collect load-balancing stats for IPC classes Ricardo Neri
2023-06-14 0:29 ` Ricardo Neri
2023-06-22 9:01 ` Ionela Voinescu
2023-06-24 0:01 ` Ricardo Neri
2023-06-26 19:52 ` Tim Chen
2023-07-06 23:40 ` Ricardo Neri
2023-06-13 4:24 ` [PATCH v4 07/24] sched/fair: Compute IPC class scores for load balancing Ricardo Neri
2023-06-22 9:02 ` Ionela Voinescu
2023-06-25 20:11 ` Ricardo Neri
2023-06-26 21:01 ` Tim Chen [this message]
2023-07-06 23:48 ` Ricardo Neri
2023-06-27 15:19 ` Ionela Voinescu
2023-06-13 4:24 ` [PATCH v4 08/24] sched/fair: Use IPCC stats to break ties between asym_packing sched groups Ricardo Neri
2023-06-13 4:24 ` [PATCH v4 09/24] sched/fair: Use IPCC stats to break ties between fully_busy SMT groups Ricardo Neri
2023-06-13 4:24 ` [PATCH v4 10/24] sched/fair: Use IPCC scores to select a busiest runqueue Ricardo Neri
2023-06-22 9:03 ` Ionela Voinescu
2023-06-24 0:25 ` Ricardo Neri
2023-06-13 4:24 ` [PATCH v4 11/24] thermal: intel: hfi: Introduce Intel Thread Director classes Ricardo Neri
2023-06-13 4:24 ` [PATCH v4 12/24] x86/cpufeatures: Add the Intel Thread Director feature definitions Ricardo Neri
2023-06-13 4:24 ` [PATCH v4 13/24] x86/sched: Update the IPC class of the current task Ricardo Neri
2023-06-13 4:24 ` [PATCH v4 14/24] thermal: intel: hfi: Store per-CPU IPCC scores Ricardo Neri
2023-06-29 18:53 ` Rafael J. Wysocki
2023-07-06 23:23 ` Ricardo Neri
2023-06-13 4:24 ` [PATCH v4 15/24] thermal: intel: hfi: Report the IPC class score of a CPU Ricardo Neri
2023-06-29 18:56 ` Rafael J. Wysocki
2023-07-06 23:10 ` Ricardo Neri
2023-06-13 4:24 ` [PATCH v4 16/24] thermal: intel: hfi: Define a default class for unclassified tasks Ricardo Neri
2023-06-13 4:24 ` [PATCH v4 17/24] thermal: intel: hfi: Enable the Intel Thread Director Ricardo Neri
2023-06-13 4:24 ` [PATCH v4 18/24] sched/task_struct: Add helpers for IPC classification Ricardo Neri
2023-06-22 10:20 ` Ionela Voinescu
2023-06-25 20:23 ` Ricardo Neri
2023-06-13 4:24 ` [PATCH v4 19/24] sched/core: Initialize helpers of task classification Ricardo Neri
2023-06-13 4:24 ` [PATCH v4 20/24] sched/fair: Introduce sched_smt_siblings_idle() Ricardo Neri
2023-06-13 4:24 ` [PATCH v4 21/24] x86/sched/ipcc: Implement model-specific checks for task classification Ricardo Neri
2023-06-13 4:24 ` [PATCH v4 22/24] x86/cpufeatures: Add feature bit for HRESET Ricardo Neri
2023-06-13 4:24 ` [PATCH v4 23/24] x86/hreset: Configure history reset Ricardo Neri
2023-06-13 4:24 ` [PATCH v4 24/24] x86/process: Reset hardware history in context switch Ricardo Neri
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