netdev - Re: [bpf-next 0/6] Introduce a BPF helper to generate SYN cookies

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Message-ID: <CANn89iL2v1gecCjRt7W1dodSWoMP9wf6-0pzvFAEmBuwcJUQDw@mail.gmail.com>
Date:   Tue, 23 Jul 2019 08:30:45 +0200
From:   Eric Dumazet <edumazet@...gle.com>
To:     Petar Penkov <ppenkov.kernel@...il.com>
Cc:     netdev <netdev@...r.kernel.org>, bpf <bpf@...r.kernel.org>,
        David Miller <davem@...emloft.net>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>, lmb@...udflare.com,
        Stanislav Fomichev <sdf@...gle.com>,
        Petar Penkov <ppenkov@...gle.com>
Subject: Re: [bpf-next 0/6] Introduce a BPF helper to generate SYN cookies

On Tue, Jul 23, 2019 at 2:20 AM Petar Penkov <ppenkov.kernel@...il.com> wrote:
>
> From: Petar Penkov <ppenkov@...gle.com>
>
> This patch series introduces a BPF helper function that allows generating SYN
> cookies from BPF. Currently, this helper is enabled at both the TC hook and the
> XDP hook.


Please provide performance numbers ?

We want to know if we increase performance under synflood, or if it
does not change, or even decrease ;)

Thanks.