linux-kernel - Re: [PATCH 04/14] sched,fair: move runnable_load_avg to cfs

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Tue, 30 Jul 2019 10:55:41 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Rik van Riel <riel@...riel.com>
Cc:     linux-kernel@...r.kernel.org, kernel-team@...com, pjt@...gle.com,
        dietmar.eggemann@....com, mingo@...hat.com,
        morten.rasmussen@....com, tglx@...utronix.de,
        mgorman@...hsingularity.net, vincent.guittot@...aro.org
Subject: Re: [PATCH 04/14] sched,fair: move runnable_load_avg to cfs_rq

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@....com>

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