netdev - Re: 126 ms irqsoff Latency - Possibly due to commit 190cc82489f4 ("tcp: change source port randomizarion at connect() time")

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Message-ID: <CAHmME9oBKXWWcLyeqN4HELdU1sJCa0JmUxO11fQASQ_JTTHe+A@mail.gmail.com>
Date:   Sun, 2 Oct 2022 00:37:42 +0200
From:   "Jason A. Donenfeld" <Jason@...c4.com>
To:     Eric Dumazet <edumazet@...gle.com>
Cc:     Christophe Leroy <christophe.leroy@...roup.eu>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        David Dworken <ddworken@...gle.com>,
        Willem de Bruijn <willemb@...gle.com>,
        "David S. Miller" <davem@...emloft.net>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Subject: Re: 126 ms irqsoff Latency - Possibly due to commit 190cc82489f4
 ("tcp: change source port randomizarion at connect() time")

Hi Eric,

On Sun, Oct 2, 2022 at 12:31 AM Eric Dumazet <edumazet@...gle.com> wrote:
> Sorry Jason, it seems I forgot to CC you on the tentative patch I sent
> earlier today
>
> https://patchwork.kernel.org/project/netdevbpf/patch/20221001205102.2319658-1-eric.dumazet@gmail.com/

Oh, pfiew! I just came to basically the same conclusion as you were
typing that to me:
https://lore.kernel.org/netdev/YzjAfdip8giWBF4+@zx2c4.com/

Your patch seems like a good approach.

Jason