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

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Message-ID: <1de9e991f6c109d5986c857bc176e03d5e167944.camel@redhat.com>
Date:   Thu, 24 Feb 2022 18:22:04 +0100
From:   Paolo Abeni <pabeni@...hat.com>
To:     Harold Huang <baymaxhuang@...il.com>, netdev@...r.kernel.org
Cc:     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

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

> 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.

Cheers,

Paolo