Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Date:   Tue, 30 Jul 2019 10:55:41 +0200
From:   Peter Zijlstra <peterz@infradead.org>
To:     Rik van Riel <riel@surriel.com>
Cc:     linux-kernel@vger.kernel.org, kernel-team@fb.com, pjt@google.com,
        dietmar.eggemann@arm.com, mingo@redhat.com,
        morten.rasmussen@arm.com, tglx@linutronix.de,
        mgorman@techsingularity.net, vincent.guittot@linaro.org
Subject: Re: [PATCH 04/14] sched,fair: move runnable_load_avg to cfs_rq
Message-ID: <20190730085541.GU31398@hirez.programming.kicks-ass.net>
References: <20190722173348.9241-1-riel@surriel.com>
 <20190722173348.9241-5-riel@surriel.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20190722173348.9241-5-riel@surriel.com>
User-Agent: Mutt/1.10.1 (2018-07-13)
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On Mon, Jul 22, 2019 at 01:33:38PM -0400, Rik van Riel wrote:
> Since only the root cfs_rq runnable_load_avg field is used any more,
> we can move the field from struct sched_avg, which every sched_entity
> has one of, directly into the struct cfs_rq, of which we have way fewer.
> 
> No functional changes.
> 
> Suggested-by: Dietmar Eggemann <dietmar.eggemann@arm.com>

I think he's praying on space in that cacheline ;-)