From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lj1-x22e.google.com (mail-lj1-x22e.google.com [IPv6:2a00:1450:4864:20::22e]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 2D40D3B2A4 for ; Fri, 23 Feb 2024 11:27:11 -0500 (EST) Received: by mail-lj1-x22e.google.com with SMTP id 38308e7fff4ca-2d2531294faso16479311fa.2 for ; Fri, 23 Feb 2024 08:27:11 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1708705630; x=1709310430; darn=lists.bufferbloat.net; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=4vmextmE1TpDVJFWdZrEphjXFOe0uQePEKV5plRP5Bs=; b=NcVS46JBqSaKFhm7IP+7TLa4hDB+ekNv0SJSEiDDEB6VnFG8xK6BqbvMLJNhnYc2TR xuFWrnbf+hHddrMyTcffdQVlfpzqbBdAxrH2KjdZqlZWpj03g0ZVx8W5FKwJL0KVVyZS aRVdRI837FGAZBYAm/v59c3XfH1ngwpOzd9qLfcjAjorVBwQtzF4/WUJCxQ2YZHsAQeY Qu1HLyXny/UaBsJnP8PlpioMztLBEwPce8CVCi2vJbNqRARhnPGpFj/7DHlyH8VUDu3O tif37Z799RYYj5nN01MOViXQOsfeM2yHE1UKvGWxSZNZzYXTjJKNZvuNl/SVZYJYF0ie gjxg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1708705630; x=1709310430; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=4vmextmE1TpDVJFWdZrEphjXFOe0uQePEKV5plRP5Bs=; b=Ftfjd3qZWM0jADc8Jgdi6adDIMPr8EykgKoke5IAmvx+Ve0GBTy4VvPRY90VxHCosq HgXtwhNM4iz40EAKdZHJpOKbWDb3ykpNKWO4z9Fm58JWYNW+bWKHb5IpBtXNS9pDyRGh cYPrw7R1FqFit77eiijwKoxyb2JyxjUG5uGsGIIZiOfJWgymybwMnJAXQai8FsuMid5j A7D1wHWN1aEqVoTixZy3RXF2cbSV4w6laVg3FyeaFwv6w7/Xj6AuZncp1dlxaQH97gg7 O5QMi8ws2tcH6CwRuwg6il64wW6nPXvr6Ikh+eLbZcqHKfiI9QFq5YeSQPumgESpHDTG n1HQ== X-Gm-Message-State: AOJu0YxdF+4ADlvAZXo7Ca6IeYdNhpsvwH9qcytHQjWTo13LMHPPq5h3 eyLppZ7u8jBbddZZy85KTz9TX3NovA7QyISwgKfq09s+/8QtfpnfOEfvXeaan5WMA6wuuxdkr9l GORRpUP8X8dGcm4Lv54W6umPCvuQ= X-Google-Smtp-Source: AGHT+IFmgoMa6kO/8migypEGZGsWzjSfzED3lVaMUfpk0q35fd6mNc1AZveGhsiyjn0QAitS7PM0DQdl4lMRt7dwg5A= X-Received: by 2002:a05:6512:2314:b0:512:e394:bfb1 with SMTP id o20-20020a056512231400b00512e394bfb1mr216005lfu.43.1708705629312; Fri, 23 Feb 2024 08:27:09 -0800 (PST) MIME-Version: 1.0 References: <875xyldhbk.fsf@toke.dk> In-Reply-To: <875xyldhbk.fsf@toke.dk> From: Dave Taht Date: Fri, 23 Feb 2024 11:26:58 -0500 Message-ID: To: =?UTF-8?B?VG9rZSBIw7hpbGFuZC1Kw7hyZ2Vuc2Vu?= Cc: Cake List Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Subject: Re: [Cake] cake's ack-filter vs GSO X-BeenThere: cake@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: Cake - FQ_codel the next generation List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 23 Feb 2024 16:27:11 -0000 On Sun, Feb 18, 2024 at 8:37=E2=80=AFAM Toke H=C3=B8iland-J=C3=B8rgensen wrote: > > Dave Taht via Cake writes: > > > It has been years since I looked at cake's code. > > > > Does anyone remember why we do not ack-filter a gso-split? > > Because a GSO packet cannot be a pure ACK, so it wouldn't be filtered > anyway... But a GRO packet can, and most likely IS a pure ack packet train that could and should be thinned. I think. Yes? Anyway, I put in for a small grant a few months ago with NLNET on this (and keep hoping that somewhere out there, there are more orgs using cake willing to throw in? I mean there are hundreds now! Can anyone reach out to them?) It might be approved in a month or so - but it also had scope in looking at transports and the BSDs, and I keep hoping to somehow find enough resources to have a project with 3 core folk running at it part time for 2 years. https://docs.google.com/document/d/1tTYBPeaRdCO9AGTGQCpoiuLORQzN_bG3TAkEolJ= Ph28/edit Elsewhere a volunteer started some work on validating the fq_codel implementations of openbsd and freebsd. The results are interesting! The "wrong" openbsd version with a 400 count cap does not behave much differently from the one with the pure newton invsqrt approximation in the tests so far. Can anyone suggest tests to exercise it? Do I have the energy to write them up yet? No. I might start yet another mailing list to discuss it. My long term hope is to gain enough experience, somehow get cake ported over to those OSes eventually, but I would settle for just quieting the noise in the opnsense world. I am trying to have a BQL discussion on the netdev list also, about virtio-net... Maybe this presentation will gain traction: https://www.youtube.com/watch?v=3DrWnb543Sdk8&t=3D2603s > > -Toke -- https://blog.cerowrt.org/post/2024_predictions/ Dave T=C3=A4ht CSO, LibreQos