netdev - Re: [PATCH net-next] veth: Do not record rx queue hint in veth

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Date:   Thu, 06 Jan 2022 14:00:10 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Daniel Borkmann <daniel@...earbox.net>
Cc:     davem@...emloft.net, kuba@...nel.org, netdev@...r.kernel.org,
        laurent.bernaille@...adoghq.com, maciej.fijalkowski@...el.com,
        toshiaki.makita1@...il.com, eric.dumazet@...il.com,
        pabeni@...hat.com, john.fastabend@...il.com, willemb@...gle.com
Subject: Re: [PATCH net-next] veth: Do not record rx queue hint in veth_xmit

Hello:

This patch was applied to netdev/net-next.git (master)
by David S. Miller <davem@...emloft.net>:

On Thu,  6 Jan 2022 01:46:06 +0100 you wrote:
> Laurent reported that they have seen a significant amount of TCP retransmissions
> at high throughput from applications residing in network namespaces talking to
> the outside world via veths. The drops were seen on the qdisc layer (fq_codel,
> as per systemd default) of the phys device such as ena or virtio_net due to all
> traffic hitting a _single_ TX queue _despite_ multi-queue device. (Note that the
> setup was _not_ using XDP on veths as the issue is generic.)
> 
> [...]

Here is the summary with links:
  - [net-next] veth: Do not record rx queue hint in veth_xmit
    https://git.kernel.org/netdev/net-next/c/710ad98c363a

You are awesome, thank you!
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