netdev - Re: [PATCH RFC net-next 00/11] udp gso

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Message-ID: <81f1442f-f229-8667-8c02-baabd193ba23@gmail.com>
Date:   Fri, 31 Aug 2018 03:09:02 -0700
From:   Eric Dumazet <eric.dumazet@...il.com>
To:     Paolo Abeni <pabeni@...hat.com>,
        Willem de Bruijn <willemdebruijn.kernel@...il.com>,
        Sowmini Varadhan <sowmini.varadhan@...cle.com>
Cc:     Network Development <netdev@...r.kernel.org>,
        Willem de Bruijn <willemb@...gle.com>
Subject: Re: [PATCH RFC net-next 00/11] udp gso



On 08/31/2018 02:09 AM, Paolo Abeni wrote:
> I hope quic can leverage such scenario, but I
> really know nothing about the protocol.
>

Most QUIC receivers are mobile phones, laptops, with wifi without GRO anyway...

Even if they had GRO, the inter-packet delay would be too high for GRO to be successful.

(vast majority of QUIC flows are < 100 Mbits because of the last mile hop)

GSO UDP is used on servers with clear gains, but there are not
really high speed receivers where GRO could be used.