netdev - Re: [PATCH net-next 0/6] tcp: remove non GSO code

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Date:   Wed, 21 Feb 2018 07:14:49 +0100
From:   Oleksandr Natalenko <oleksandr@...alenko.name>
To:     Eric Dumazet <eric.dumazet@...il.com>
Cc:     Eric Dumazet <edumazet@...gle.com>,
        "David S . Miller" <davem@...emloft.net>,
        netdev <netdev@...r.kernel.org>,
        Neal Cardwell <ncardwell@...gle.com>,
        Yuchung Cheng <ycheng@...gle.com>,
        Soheil Hassas Yeganeh <soheil@...gle.com>
Subject: Re: [PATCH net-next 0/6] tcp: remove non GSO code

Hi.

On středa 21. února 2018 0:21:37 CET Eric Dumazet wrote:
> My latest patch (fixing BBR underestimation of cwnd)
> was meant for net tree, on a NIC where SG/TSO/GSO) are disabled.
> 
> ( ie when sk->sk_gso_max_segs is not set to 'infinite' )
> 
> It is packet scheduler independent really.
> 
> Tested here with pfifo_fast, TSO/GSO off.

Well, before the patch with BBR and sg off here it is ~450 Mbps for fq and 
~115 Mbps for pfifo_fast. So, comparing to what I see with the patch (850 and 
200 respectively), it is definitely an improvement.

Thanks.