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Date:   Wed, 30 Dec 2020 04:38:54 -0800
From:   Richard Cochran <>
To:     Willem de Bruijn <>
        Willem de Bruijn <>
Subject: Re: [PATCH rfc 3/3] virtio-net: support transmit timestamp

On Mon, Dec 28, 2020 at 11:22:33AM -0500, Willem de Bruijn wrote:
> From: Willem de Bruijn <>
> Add optional delivery time (SO_TXTIME) offload for virtio-net.
> The Linux TCP/IP stack tries to avoid bursty transmission and network
> congestion through pacing: computing an skb delivery time based on
> congestion information. Userspace protocol implementations can achieve
> the same with SO_TXTIME. This may also reduce scheduling jitter and
> improve RTT estimation.

This description is clear, but the Subject line is confusing.  It made
me wonder whether this series is somehow about host/guest synchronization
(but your comments do explain that that isn't the case).

How about this instead?

   virtio-net: support future packet transmit time


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