linux-kernel - Re: [PATCH v2] sched/topology: Introduce NUMA identity node sched domain

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Message-ID: <20170824083736.a36ivkhgb34g2lny@pd.tnic>
Date:   Thu, 24 Aug 2017 10:37:36 +0200
From:   Borislav Petkov <bp@...e.de>
To:     Suravee Suthikulpanit <Suravee.Suthikulpanit@....com>
Cc:     linux-kernel@...r.kernel.org, mingo@...hat.com,
        peterz@...radead.org
Subject: Re: [PATCH v2] sched/topology: Introduce NUMA identity node sched
 domain

On Thu, Aug 24, 2017 at 08:13:23AM +0700, Suravee Suthikulpanit wrote:
> One reason that I can think of is that, on older systems (at least for AMD),
> L3 sched domain level has the same cpumask as the node level. This is not
> the case for Zen.

So please write that in the commit message. You're changing code which
runs on older systems so the impact (or the absence of it) has to be
clear.

-- 
Regards/Gruss,
    Boris.

SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
--