From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ob0-x22b.google.com (mail-ob0-x22b.google.com [IPv6:2607:f8b0:4003:c01::22b]) (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 6550A21F7FF for ; Sat, 24 Oct 2015 03:20:17 -0700 (PDT) Received: by obbwb3 with SMTP id wb3so111647000obb.0 for ; Sat, 24 Oct 2015 03:20:17 -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-type:content-transfer-encoding; bh=wlb7XrkhsFIAGOOKaa1xEnA3qWjAZEDd5ugxcIRy/3E=; b=oN/iX8CDleixymRB0NHzs/m4ZyoTKlzvCEBN4u/pRYF195q2wLL84goWUDMMT95DCV JyQtOePmRLDMdt3bMhK4T4oLm/n3sxkZ6GeE6R0pgCplTB7OQRtxsaGaRPVO+YhR//BV vrQS50zd+W89twrFKCWW5aHf16ZpdTCq8zn6GSBo7OG/vEpOGIe3mz5eu57u1LesLLcv bSefFontSHRPtwcrdezRsZh5yo2hEIO4nIraeg7TuBf9cO0/duyxNeIEqu2SjGrmMfu2 VrqfDYG7UVeBkSDuPTHn7fkh+s7U/Vv3+cwzpbKyjpQs0tIBSQFen2jy3M19bwLie9Ha /OAA== MIME-Version: 1.0 X-Received: by 10.60.128.227 with SMTP id nr3mr18993890oeb.47.1445682016815; Sat, 24 Oct 2015 03:20:16 -0700 (PDT) Received: by 10.202.108.212 with HTTP; Sat, 24 Oct 2015 03:20:15 -0700 (PDT) In-Reply-To: <562A5BE5.6010101@gmail.com> References: <562A5BE5.6010101@gmail.com> Date: Sat, 24 Oct 2015 12:20:15 +0200 Message-ID: From: Dave Taht To: Richard Smith Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Cc: "cerowrt-devel@lists.bufferbloat.net" Subject: Re: [Cerowrt-devel] Problems testing sqm X-BeenThere: cerowrt-devel@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: Development issues regarding the cerowrt test router project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 24 Oct 2015 10:20:40 -0000 Another thought is that this hardware agressively does GRO - 64k "packets"really messes up htb. We already showed that problem in the previous generation. which we fixed in cake... Turn off all ethernet offloads and try again? I have no idea what else is going wrong. Dave T=C3=A4ht I just lost five years of my life to making wifi better. And, now... the FCC wants to make my work, illegal for people to install. https://www.gofundme.com/savewifi On Fri, Oct 23, 2015 at 6:10 PM, Richard Smith wrote: > I have a shiny new Linksys WRT1900ACS to test. > > I thought it might be nice to start with some comparisons of factory > firmware vs OpenWRT with sqm enabled. > > So I built and installed an openwrt trunk but the results were very > non-impressive. Rrul test reported mulit-seconds of latency and it was > equally non-impressive with sqm enabled or disabled. So I assumed that s= qm > in trunk on this device must not work yet. Then I wondered how well sqm = in > trunk was tested and that perhaps its broken for all devices. > > So I tested openwrt trunk on my Netgear 3700v2 and saw the same results. > Then I tried openwrt cc and got the same results. > > Finally, I went to the reference implementation: cerowrt 3.10.50-1 on my > 3700v2. Same results. > > So at this point I'm thinking there's a PEBKAC issue and I'm not really > turning it on. > > Here's my enable procedure: > > Go the sqm tab in the GUI and set egress and ingress to 10000, set the > interface to the upstream interface, click enable, click save and apply. > Everything else is left at default. ie fq_codel and simple.qos. > > I've also tried a reboot after enabling those settings and then gone back= to > the gui to verify they were still set. > > My test setup: > > Laptop<--1000BaseT-->DUT<--1000baseT-->Server > > I run netperf-wrapper -H Server -l 30 rrul and look at the 'totals' or 'a= ll' > plot. > > If I run the above with this setup. > > Laptop<--1000baseT-->Server > > Then I get the expected 800-900Mbit/s with latencies < 15ms. So I don't > think there's a problem with my test infrastructure. > > What am I missing and or what's the next step in figuring out whats wrong= ? > > -- > Richard A. Smith > _______________________________________________ > Cerowrt-devel mailing list > Cerowrt-devel@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/cerowrt-devel