linux-kernel - Re: [PATCH] tun: support NAPI to accelerate packet processing

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Message-ID: <CAHJXk3aSeNYdDksFjWOZaMueFtix8jYpcAV9qCThQjrX_5xRHQ@mail.gmail.com>
Date:   Fri, 25 Feb 2022 11:36:58 +0800
From:   Harold Huang <baymaxhuang@...il.com>
To:     Paolo Abeni <pabeni@...hat.com>
Cc:     netdev <netdev@...r.kernel.org>, Jason Wang <jasowang@...hat.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] tun: support NAPI to accelerate packet processing

Paolo Abeni <pabeni@...hat.com> 于2022年2月25日周五 01:22写道：
>
> Hello,
>
> On Thu, 2022-02-24 at 18:38 +0800, Harold Huang wrote:
> > In tun, NAPI is supported and we can also use NAPI in the path of
> > batched XDP buffs to accelerate packet processing. What is more, after
> > we use NPAI, GRO is also supported. The iperf shows that the throughput
>
> Very minor nit: typo above NPAI -> NAPI

Fix it in the next version.

>
> > could be improved from 4.5Gbsp to 9.2Gbps per stream.
> >
> > Reported-at: https://lore.kernel.org/netdev/CAHJXk3Y9_Fh04sakMMbcAkef7kOTEc-kf84Ne3DtWD7EAp13cg@mail.gmail.com/T/#t
> > Signed-off-by: Harold Huang <baymaxhuang@...il.com>
>
> Additionally, please specify explicitly the target tree into the patch
> subject.

Fix it in the next version.

>
> Cheers,
>
> Paolo
>

Thanks,

Harold