From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-io0-x22a.google.com (mail-io0-x22a.google.com [IPv6:2607:f8b0:4001:c06::22a]) (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 5A8B63B2A0; Sun, 14 Aug 2016 19:02:53 -0400 (EDT) Received: by mail-io0-x22a.google.com with SMTP id q83so67897532iod.1; Sun, 14 Aug 2016 16:02:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=udkPlncDqHkNGJNiCJCEOA8TwumB+pN/f6UW1L9W48U=; b=BrbCn4h+TFmoLSzE2VHBruiw3lIvOxLKlj2qI1KCz30x0rUc/UK5cZO2NMo4MwVNcB aEVvMC+ZWw3phzExQ0u8Xq4GWlk6dzh/XywWTgysYWgybgvLy5Q02Yo/Zq3xzVz3CEoh n9EMFIHGVJx3OrKkwAgmKI7s0i0wF/W0xIUXaqjKt10eHnTkHK9KcOHUIB0+HWYX7rhM bpveSKoGN8OXoletSIwWRXUEhqollnIYbZuPmr++SRsaYf5T119QRf6Hts6I5W8m0tHX V4RFqbsk5etr6hOzrC7cQ/DW9n+xnfOYIlDFoPWi5mZoAieG4ve+04yH2RWhsi9oP9ax jcWQ== 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:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=udkPlncDqHkNGJNiCJCEOA8TwumB+pN/f6UW1L9W48U=; b=RBLeGgCO/O4fD4xZ6qli7lNNaeI2NyIeoi5THqx3eIV5BUvxVhVm6wRGoJ0jnx7kAX PFekIYr7lm8zq+rDeu7M8IoGyjyS1O8pMdhRq6kuMwo4llMTtvSgx4/e38aGlNqDF8zu u1u6GuDHV8p0E68Y2hiO9dD4vkp+ISQ4vP9znOmXVILG6jMfMolSdF5nOFBeHycOR6pV +aH0SQ3TOG2mWFVkriGATppevAfgRVH/Q4cb7ftrKsqEoRI46oroNI4PK2LbEjIEDT91 rVh93+O3acqSIM/N+JHmu0z+uLYvnUpEcAdsM+QBO3ZN88KgTyl7vc0ujiD/ErK8LhGT AF1g== X-Gm-Message-State: AEkoouvqKPUwAdvdT0r3580JxNEkDuFb243iYW8vTE7fWmr43eN36320lmsgKGtlQenR5HSoYsa1Bsj7TYuTnA== X-Received: by 10.107.22.198 with SMTP id 189mr34401083iow.0.1471215772801; Sun, 14 Aug 2016 16:02:52 -0700 (PDT) MIME-Version: 1.0 Received: by 10.36.13.200 with HTTP; Sun, 14 Aug 2016 16:02:52 -0700 (PDT) In-Reply-To: References: <76eb6a6a-2f39-3b36-d4c1-04198083c0f6@gmail.com> From: Dave Taht Date: Mon, 15 Aug 2016 01:02:52 +0200 Message-ID: To: Aaron Wood Cc: Noah Causin , make-wifi-fast@lists.bufferbloat.net, Simon Wunderlich , "cerowrt-devel@lists.bufferbloat.net" , Felix Fietkau Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Subject: Re: [Make-wifi-fast] [Cerowrt-devel] wifi airtime fairness patches could use eyeballs and testing 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: Sun, 14 Aug 2016 23:02:53 -0000 On Mon, Aug 15, 2016 at 12:49 AM, Aaron Wood wrote: > On Sun, Aug 14, 2016 at 3:21 PM, Dave Taht wrote: >> >> >> Ideas as to why crypto chops off so much throughput in the first place >> (from 120mbit to 80), and as to what else to poke into with crypto on, >> would be nice. > > > Crypto as in WPA2? If 1 client is fine, but multiple clients is not, my > guess is that changing the AES key in the crypto accelerator is > slow/difficult, and so what you're seeing is the lost time as it switches > security contexts. 1 client suffers degradation with more than one flow in flight, being fq'd, and crypted with wpa2. I'll have plots in the morning. > -Aaron --=20 Dave T=C3=A4ht Let's go make home routers and wifi faster! With better software! http://blog.cerowrt.org