From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-oi0-x231.google.com (mail-oi0-x231.google.com [IPv6:2607:f8b0:4003:c06::231]) (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 BB99A3B25E; Tue, 24 May 2016 12:02:39 -0400 (EDT) Received: by mail-oi0-x231.google.com with SMTP id w184so26907016oiw.2; Tue, 24 May 2016 09:02:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-transfer-encoding; bh=xWlrIMQf8XpvQpVMVvCR1HlLDyZsYQv0i9y2r/M89Oo=; b=ULKCyIIEuq6cvEc+UIMA1lj0ZXfBixS2yskAbxma97X2AIo5aaNGlILNB32aL6rf4A vxTGoCWgaR65hNfUuTFiNhwfxnoRdVxkt7yM0Mpk5+B0tNDrLeFbny0QoA97Zzrz+TzV 0pAxTUJ89PfFyhX6r+SuVG/C6Eh3iQOHYQNQoveydi5TgcBL1C5oKAprOKrct22Oniep n1MFRhcpi67OTKxDLOBZ9bF9MWdwiTiMF98G7t1tlhXqgE114Av3dh8acNF/htTvynhp nLrESRAR0kIPtxsdjdK8Gb3KYTflhyYCoYTuNtILoRpCoAz10J91v45jmFAiP8ixtUtc CE6Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-transfer-encoding; bh=xWlrIMQf8XpvQpVMVvCR1HlLDyZsYQv0i9y2r/M89Oo=; b=XxjCx+fZSWPsNeMSUnNlnzKAPUSnqCGadDkAeAVJStn21o8wvs1u6ycporVOq7xXKP lGOXaPQPS43lu1xO5MA1+YQbicUbSgP+o1mDBtOQlE6vX0xwAcuhcw0NLKVNTcM8+1zg WJqKKlTe20qTVP8TaIP90D0UMmkDHEM6pKkEuGLm+afjw2RGLfFKKyaXFt2ZZu1vbjFq y+YkK9Ay+Hu4ec8re/7zzSLuQPhQuxjVB6AUnnlcCl1yLTGSSHaawLUNevALsaTiy8n2 W+zCwf50AgBT9sJoQg35rYm9cO42XxCpn5reN9HmA7bxRxAbSdNfGW7buqybSuVUJ+aV TuYw== X-Gm-Message-State: AOPr4FUsUZ17k6Jb8dneW6vgLNDY0tD4lQrbj11rkIxYLBLKHUrwuLIzboyl8sdkGoZvr5vb/Q4CGQycvEGx/Q== MIME-Version: 1.0 X-Received: by 10.202.252.71 with SMTP id a68mr10208430oii.112.1464105758721; Tue, 24 May 2016 09:02:38 -0700 (PDT) Received: by 10.202.229.210 with HTTP; Tue, 24 May 2016 09:02:37 -0700 (PDT) In-Reply-To: <9F552756-C144-4C69-88F5-5F883A852DBB@gmail.com> References: <22371476-B45C-4E81-93C0-D39A67639EA0@gmx.de> <857AEE56-E7DB-4981-B32E-82473F877139@gmail.com> <8AB0D25D-C1CA-45F1-889E-2F73CF8C44F7@gmail.com> <323AFC22-A092-4F59-8197-AF21EF73FD58@gmail.com> <274D3A0FA900FD47AA6B56991AAA32FDC5529FC8@wtl-exchp-1.sandvine.com> <574478B4.7080103@taht.net> <9F552756-C144-4C69-88F5-5F883A852DBB@gmail.com> Date: Tue, 24 May 2016 10:02:37 -0600 Message-ID: From: Dave Taht To: Jonathan Morton Cc: =?UTF-8?Q?Dave_T=C3=A4ht?= , cake@lists.bufferbloat.net, "codel@lists.bufferbloat.net" Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Subject: Re: [Cake] [Codel] Proposing COBALT 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: Tue, 24 May 2016 16:02:39 -0000 On Tue, May 24, 2016 at 9:56 AM, Jonathan Morton wr= ote: > >> On 24 May, 2016, at 18:52, Dave T=C3=A4ht wrote: >> >> My last attempts with cake the way it was had it performing miserably at >> longer RTTs (try 50ms) vs codel or fq-codel - as in half the throughput >> achieved by codel, at that RTT. > > Was that before or after I found and fixed the invsqrt cache bug yesterda= y? That was back in december, when I had also ripped out the invsqrt cache entirely with things like "bcake". (I still do not see any point to the invsqrt cache, nor ) I did some informal testing of recent cakes about a month back.. and went back to fq_codel. cake ate too much cpu, queue depth was longer, throughput at 50ms or longer, worse. I decided that I'd much rather work on wifi. Please test at longer rtts. > - Jonathan Morton > > _______________________________________________ > Codel mailing list > Codel@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/codel --=20 Dave T=C3=A4ht Let's go make home routers and wifi faster! With better software! http://blog.cerowrt.org