From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lf0-x233.google.com (mail-lf0-x233.google.com [IPv6:2a00:1450:4010:c07::233]) (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 8A01E3B29E for ; Fri, 27 Apr 2018 07:48:21 -0400 (EDT) Received: by mail-lf0-x233.google.com with SMTP id y14-v6so1899430lfy.12 for ; Fri, 27 Apr 2018 04:48:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=otvorenamreza-org.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=vtu88c373YlZM6UOe/ZRzDEsCxE7FPGLynow7WOHSnY=; b=A3oxQ3oyp484rr4fiMhJ1yK1Dex9wCGLIgBzCqphlVbtH6XgFeMRJcgN6hG7BKDYM7 S6TCRhW6pIUojYC7rVn8zZgbyhwM++28jJ6P0DjjaLpNLDVkEZaOHVa0Ogt47rn2h3yB tkSkTsLKpVXa/OgZw0AKVblnzOUPuWy0PxnCp4MlvIQQg9OZ9WP9rEh+8J50Qwe3km7H 3CP1+lXtoftypYw0ey5MmW16XdJ8AhXmCCJAajsO3nu1NguKCqfxNXMjaEaGmk2JE1OO 7LAJCKRrzE91Wd6z4yRs4BFLvt9WME5eu+yY8ylPIU7aucuX25TiAZeFMS1mKUw3+z7l d7mw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=vtu88c373YlZM6UOe/ZRzDEsCxE7FPGLynow7WOHSnY=; b=IZLKHo4TtcWnghgbcfeiTQmg8Ha2myGgBeCdV6qNcE2jvLR48bQo1IpAmBnCLxKJpY VpqwHtMzZo7O2UNtH14pd6/xxEz7Z7iA/3UMLziGllnj/5EXfUchLtos9/k4pgFw2Rig 8lDarOYIfWFvKG1NVkZNXYdgSJO6bnYCKfLz/AvEE+Rm73oxB1HGu3lZcYGr7xeKB1Pp eLZB+aK8nt7YDk4t0+3xHEKjPKKDnZAhqr+v8G5G3fN3YcsaEFNqOPJsLJ572kIA58Nm +fulKtrthHf5hH3p4BJPN9fWT5oIMNge9qlWWpuznSnVzaY4IjAr4vt2iN4Et8Uo9Vwu iu3g== X-Gm-Message-State: ALQs6tAqB03flTpje8UkIICLFI2Buos9SJwVZT1yeH7y0f02or4LM6T7 73eRMQkbnpw/eDMUdrcV8ydzrrAwQA2RrEkeTDxLXg== X-Google-Smtp-Source: AB8JxZqwkwffiYgr8SyLF+ZTCKmWT67GkE34mmxiuZPx/IVITaiHPT0K5asDBKu71BzmKilG0k2wpGJTH09Gdqyx+84= X-Received: by 2002:a2e:8759:: with SMTP id q25-v6mr1442281ljj.66.1524829700206; Fri, 27 Apr 2018 04:48:20 -0700 (PDT) MIME-Version: 1.0 Received: by 2002:a19:d853:0:0:0:0:0 with HTTP; Fri, 27 Apr 2018 04:47:39 -0700 (PDT) X-Originating-IP: [93.143.197.128] In-Reply-To: <66BDCA6E-D7C4-4E76-8591-8FDC35B09EA3@eventide.io> References: <66BDCA6E-D7C4-4E76-8591-8FDC35B09EA3@eventide.io> From: Valent Turkovic Date: Fri, 27 Apr 2018 13:47:39 +0200 Message-ID: To: Pete Heist Cc: make-wifi-fast@lists.bufferbloat.net Content-Type: text/plain; charset="UTF-8" Subject: Re: [Make-wifi-fast] mesh deployment with ath9k driver changes X-BeenThere: make-wifi-fast@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 27 Apr 2018 11:48:21 -0000 Hi Pete, I'm betting that you are running into a classic issue of not enough airtime to do all you want, and then you get into death-spiral of frame re-transmission (symptom you see are high ping times) and then whole network collapses. Get someone who has wifi analysis tools to take a snapshot of your airtime and watch for number of re-transmitted frames (or get that info from ath9 driver statistics). If you see more than 5% of frame re-transmissions you are having noticeable issues, if you see more than 15% of frame re-transmissions your network is probably not usable. Hope this helps, Valent.