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References: <20220706085320.17581-1-atenart@kernel.org> <CANn89iKjr=3CVtAiJN_SLUYj5pLta5E1HxR6pEwHcNqwY3BAKA@mail.gmail.com> <20220706141839.469986f5@kernel.org>
Subject: Re: [PATCH net-next] Documentation: add a description for net.core.high_order_alloc_disable
Cc:     Eric Dumazet <edumazet@google.com>,
        David Miller <davem@davemloft.net>,
        Paolo Abeni <pabeni@redhat.com>,
        netdev <netdev@vger.kernel.org>
From:   Antoine Tenart <atenart@kernel.org>
To:     Jakub Kicinski <kuba@kernel.org>
Message-ID: <165717858103.4591.2264661991917194467@kwain>
Date:   Thu, 07 Jul 2022 09:23:01 +0200
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List-ID: <netdev.vger.kernel.org>
X-Mailing-List: netdev@vger.kernel.org

Quoting Jakub Kicinski (2022-07-06 23:18:39)
> On Wed, 6 Jul 2022 15:24:58 +0200 Eric Dumazet wrote:
> > linux-5.14 allowed high-order pages to be stored on the per-cpu lists.
> >=20
> > I ran again the benchmark cited in commit ce27ec60648d to confirm that
> > the slowdown we had before 5.14 for
> > high number of alloc/frees per second is no more.
>=20
> Sounds useful to know - Antoine, do you reckon we can include a mention
> of this knob being mostly of historical importance?

Sure, I'll send a v2 with that.

Thanks!
Antoine