linux-kernel - Re: [PATCH v2 06/22] sched/fair: Collect load-balancing stats for IPC classes

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Message-ID: <20221214003143.GB30234@ranerica-svr.sc.intel.com>
Date:   Tue, 13 Dec 2022 16:31:43 -0800
From:   Ricardo Neri <ricardo.neri-calderon@...ux.intel.com>
To:     Ionela Voinescu <ionela.voinescu@....com>
Cc:     "Peter Zijlstra (Intel)" <peterz@...radead.org>,
        Juri Lelli <juri.lelli@...hat.com>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Ricardo Neri <ricardo.neri@...el.com>,
        "Ravi V. Shankar" <ravi.v.shankar@...el.com>,
        Ben Segall <bsegall@...gle.com>,
        Daniel Bristot de Oliveira <bristot@...hat.com>,
        Dietmar Eggemann <dietmar.eggemann@....com>,
        Len Brown <len.brown@...el.com>, Mel Gorman <mgorman@...e.de>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Tim Chen <tim.c.chen@...ux.intel.com>,
        Valentin Schneider <vschneid@...hat.com>, x86@...nel.org,
        "Joel Fernandes (Google)" <joel@...lfernandes.org>,
        linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        "Tim C . Chen" <tim.c.chen@...el.com>
Subject: Re: [PATCH v2 06/22] sched/fair: Collect load-balancing stats for
 IPC classes

On Thu, Dec 08, 2022 at 08:50:23AM +0000, Ionela Voinescu wrote:
> Hi,
> 
> On Monday 28 Nov 2022 at 05:20:44 (-0800), Ricardo Neri wrote:
> [..]
> >  
> > +struct sg_lb_ipcc_stats {
> > +	int min_score;	/* Min(score(rq->curr->ipcc)) */
> > +	int min_ipcc;	/* Min(rq->curr->ipcc) */
> 
> Nit: this is not the minimum IPCC between the current tasks of all
> runqueues, but the IPCC specific to the task with the minimum score.

> Possibly there's not much to be done about the variable name, but the
> comment can be made more clear.

Very true. I will make the change.

Thanks and BR,
Ricardo