From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lb0-x234.google.com (mail-lb0-x234.google.com [IPv6:2a00:1450:4010:c04::234]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id 5AA5F21F277 for ; Fri, 30 Oct 2015 07:38:13 -0700 (PDT) Received: by lbbec13 with SMTP id ec13so52587973lbb.0 for ; Fri, 30 Oct 2015 07:38:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=content-type:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=+Hyy7lBVBzdFT2VYJyrV4VvSDzeLOHaPNYT1TT1YLpI=; b=H1w5meVtUDhXfQWNHHUg+QOEiAjB6IzgifFYAI/MsP7iY/KTXgHINtytG5rQ/OfJ74 y+FYqx4nJWUyZB9rk4kWxx8x99i06UAsZvZ0O42XQUudXNE9F4eTi1gxWk1v9sQSmeLM qqQBaBYFanrN13T1NQvLFaTggzlROk+J842/4f0rB2iMLOoEc3cCzd0D1hzWtPF9uq9I mlURnf2iSMbPJPEoEu17OivRlAOPLs3MhLYrFxqzceU38VfmopJz+Vb64tNf0JqkvZYE /i6nrFiVQIzV/STvUo8QibtnnIUGY5+ilQY443N2AckLeeo73WrXY2wBD10Nq5JerWbi XrDg== X-Received: by 10.112.144.225 with SMTP id sp1mr4024980lbb.97.1446215891576; Fri, 30 Oct 2015 07:38:11 -0700 (PDT) Received: from bass.home.chromatix.fi (83-245-237-115-nat-p.elisa-mobile.fi. [83.245.237.115]) by smtp.gmail.com with ESMTPSA id xt6sm1291058lbb.25.2015.10.30.07.38.10 (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Fri, 30 Oct 2015 07:38:11 -0700 (PDT) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 9.1 \(3096.5\)) From: Jonathan Morton In-Reply-To: <87io5octm5.fsf@toke.dk> Date: Fri, 30 Oct 2015 16:38:09 +0200 Content-Transfer-Encoding: quoted-printable Message-Id: References: <87r3kcedye.fsf@toke.dk> <87io5octm5.fsf@toke.dk> To: =?utf-8?Q?Toke_H=C3=B8iland-J=C3=B8rgensen?= X-Mailer: Apple Mail (2.3096.5) Cc: cake@lists.bufferbloat.net, Felix Fietkau , Jesper Dangaard Brouer Subject: Re: [Cake] kernel performance analysis in openwrt X-BeenThere: cake@lists.bufferbloat.net X-Mailman-Version: 2.1.13 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, 30 Oct 2015 14:38:37 -0000 > On 30 Oct, 2015, at 16:34, Toke H=C3=B8iland-J=C3=B8rgensen = wrote: >=20 > Jonathan Morton writes: >=20 >>> On 30 Oct, 2015, at 14:30, Toke H=C3=B8iland-J=C3=B8rgensen = wrote: >>>=20 >>> No issues on x86 that I've noticed. The slowdown is on the Archer. >>=20 >> That=E2=80=99s ARM based, isn=E2=80=99t it? >=20 > Yup. >=20 >> I have a theory if so. >=20 > Do elaborate...? ;) Search for the following comment, and if(0) the block following it. It = includes a divide. /* incoming bandwidth capacity estimate */ - Jonathan Morton