netdev - Re: [pull request][net-next 0/9] Mellanox, mlx5 XDP TX 100 Million packet per second

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Message-ID: <20181221164324.5bd7b5b9@redhat.com>
Date:   Fri, 21 Dec 2018 16:43:24 +0100
From:   Jesper Dangaard Brouer <brouer@...hat.com>
To:     Saeed Mahameed <saeedm@...lanox.com>
Cc:     "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
        Tariq Toukan <tariqt@...lanox.com>,
        Tal Gilboa <talgi@...lanox.com>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Pawel Staszewski <pstaszewski@...are.pl>, brouer@...hat.com,
        Toke Høiland-Jørgensen <toke@...e.dk>
Subject: Re: [pull request][net-next 0/9] Mellanox, mlx5 XDP TX 100 Million
 packet per second

On Thu, 20 Dec 2018 23:06:38 -0800
Saeed Mahameed <saeedm@...lanox.com> wrote:

> XDP_TX:
> We see a huge gain on single port ConnectX-5, and reach the 100 Mpps
> milestone.
> * Single-port HCA:
> 	Before:   70 Mpps
> 	After:   100 Mpps (+42.8%)

Great, this confirm that we were hitting a PCIe limit in our XDP-paper.
See graph[1] leveling off at 70Mpps for XDP_TX.

[1] https://github.com/xdp-project/xdp-project/blob/master/conference/LinuxPlumbers2018/images/redirect-test.pdf
-- 
Best regards,
  Jesper Dangaard Brouer
  MSc.CS, Principal Kernel Engineer at Red Hat
  LinkedIn: http://www.linkedin.com/in/brouer