netdev - Re: resend: tcp: performance issue with fastopen connections (mss

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Date:   Fri, 13 Jan 2017 09:14:38 -0800
From:   Eric Dumazet <edumazet@...gle.com>
To:     Alexey Kodanev <alexey.kodanev@...cle.com>
Cc:     Eric Dumazet <eric.dumazet@...il.com>,
        David Miller <davem@...emloft.net>,
        netdev <netdev@...r.kernel.org>,
        Vasily Isaenko <vasily.isaenko@...cle.com>,
        Neal Cardwell <ncardwell@...gle.com>,
        Yuchung Cheng <ycheng@...gle.com>
Subject: Re: resend: tcp: performance issue with fastopen connections (mss > window)

On Fri, Jan 13, 2017 at 9:07 AM, Alexey Kodanev
<alexey.kodanev@...cle.com> wrote:
> Hi Eric,
> On 13.01.2017 18:35, Eric Dumazet wrote:

>> Care to send a packetdrill test so that we have a clear picture of what
>> is going on ?
>
> Is it capable of making two connections in the single test, one after
> another?

Absolutely.

Neal, Yuchung would you be kind enough to send a Fastopen tpacketdrill
template showing a typical fastopen test
running on an upstream kernel ?

Thanks !