From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from us-smtp-delivery-1.mimecast.com (us-smtp-1.mimecast.com [205.139.110.61]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 1B7F63B29E for ; Mon, 6 Apr 2020 06:15:14 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1586168114; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=+hnwvqLZw14eORfIWriCprwBiEKLc66c70W85F7C4fs=; b=GWlu9R62xECZJ4Fg+FqWLiMA/TUXtfoX3t4UIKtP7LrI9qg4CPVddgyHjTqV68K4lUlxPd 6Lb03Z5LxVoSa2LihwJE2UHb8G+pyBLhr2/rVgcNr7xEAG0T10ZWNNFRzU+uZeom9gNiz9 qQaoWdxw1dR6rD08PbZcgGwQ0YwUHDI= Received: from mail-lj1-f198.google.com (mail-lj1-f198.google.com [209.85.208.198]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-162-BC1zk4MMNfubQyBb2iVmTQ-1; Mon, 06 Apr 2020 06:15:12 -0400 X-MC-Unique: BC1zk4MMNfubQyBb2iVmTQ-1 Received: by mail-lj1-f198.google.com with SMTP id i19so1767691ljn.17 for ; Mon, 06 Apr 2020 03:15:11 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:in-reply-to:references:date :message-id:mime-version:content-transfer-encoding; bh=+hnwvqLZw14eORfIWriCprwBiEKLc66c70W85F7C4fs=; b=eynfjEGWiBaRNOCdym/N9r1+7Vs/B3HYfz5lOWSkno3jhyPhExKcH9pSz6O+9wgUXT 8dFmgWTGnTWtHu/Eljr41zLDXYmDEIFhpTlPRRoFHGP2tsVzb5xz2KvswT1nm9GeKmrv kejF+GPJd0KRbeaFuDEjdi3LVPkMkDs+InQJ49wYAwJjhYqnKlm5zMGeYmy+08FOE3kf 5srFWIbn46aFCzElzpHNh/VDWZoHszka2N90WTQ8T6dK8cy/gLHAGG+25/PKOkuvFXc7 GLvV8oC20sLB7U92he29UQ543tGeyTXZeTe/5r9AoEKBQGBavFj5RWSsFFXCc1BThdCY fFhA== X-Gm-Message-State: AGi0PubkK567kK7zQrfkXWo/ZivqR/qkZqPkIZCrdlbu76Y9uH6ACxSV Z1K1dNt4D6sS/YzzRSt699NX8TJQ9uCG2f43oWaufbHtZfAp43PBgIa717EbU55+QQkXjwFu6+p jZpXj+2SO25mfgxb+xJFgPQ== X-Received: by 2002:a2e:a365:: with SMTP id i5mr11690009ljn.246.1586168110803; Mon, 06 Apr 2020 03:15:10 -0700 (PDT) X-Google-Smtp-Source: APiQypLwCHojzxOWaS2qjEKClS4bGjNyVxFDmXXTlTiutkVxFqYwi7HQORQ3GtxBYfiokOHRrNTWoA== X-Received: by 2002:a2e:a365:: with SMTP id i5mr11689990ljn.246.1586168110591; Mon, 06 Apr 2020 03:15:10 -0700 (PDT) Received: from alrua-x1.borgediget.toke.dk ([45.145.92.2]) by smtp.gmail.com with ESMTPSA id q22sm9527389ljm.10.2020.04.06.03.15.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 06 Apr 2020 03:15:09 -0700 (PDT) Received: by alrua-x1.borgediget.toke.dk (Postfix, from userid 1000) id 130421804E7; Mon, 6 Apr 2020 12:15:09 +0200 (CEST) From: Toke =?utf-8?Q?H=C3=B8iland-J=C3=B8rgensen?= To: Kevin Darbyshire-Bryant , Dave Taht Cc: Cake List In-Reply-To: <656F3146-1B43-41DC-963C-21770747E4AC@darbyshire-bryant.me.uk> References: <656F3146-1B43-41DC-963C-21770747E4AC@darbyshire-bryant.me.uk> X-Clacks-Overhead: GNU Terry Pratchett Date: Mon, 06 Apr 2020 12:15:09 +0200 Message-ID: <874ktwdioi.fsf@toke.dk> MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Subject: Re: [Cake] cake and nat in openwrt... on by default? 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: Mon, 06 Apr 2020 10:15:15 -0000 Kevin Darbyshire-Bryant writes: >> On 5 Apr 2020, at 16:22, Dave Taht wrote: >>=20 >>>=20 >>=20 >> I'd still be willing to bet, then, that the majority of instances were >> not turning nat mode on, when >> they should have been. > > If memory serves, at the time there was a lot of concern about cpu > usage and (I felt) that every line, every potential instruction and > cache hit was being scrutinised. NAT lookup by default was deemed too > much. Cake ended up being =E2=80=98cpu heavy=E2=80=99 though I=E2=80=99ve= yet to see a better > combination of shaper, aqm, flow fairness, host fairness, DSCP > awareness and ack filtering in one overall package, let alone one that > did it in less cpu. Well, one thing we could do is change the defaults in sqm-scripts? :) -Toke