From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from uplift.swm.pp.se (swm.pp.se [212.247.200.143]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 864E73B29E for ; Thu, 23 Aug 2018 13:50:24 -0400 (EDT) Received: by uplift.swm.pp.se (Postfix, from userid 501) id 900F5AF; Thu, 23 Aug 2018 19:50:21 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=swm.pp.se; s=mail; t=1535046621; bh=b32z/f0Uo/chH2hyz88URQWvKVXCOuY7AffyrZJYZJk=; h=Date:From:To:cc:Subject:In-Reply-To:References:From; b=Z4WTB1eyy9An0KbKuQogXcifM6LuSYCoQN2jmGNqvJsAZrLLiSk1yeVJ28iP0x7cs 5+QYoAmjbZVzoksDBrGaRhx4F39FCmPUQNJ3saQcls/gqNDN0So3RQ3CrUDJxYpoTY k20Rzy3XN+SOhiKGnSEuV/z3GHCCa6xwowftAf0M= Received: from localhost (localhost [127.0.0.1]) by uplift.swm.pp.se (Postfix) with ESMTP id 8B5D99F; Thu, 23 Aug 2018 19:50:21 +0200 (CEST) Date: Thu, 23 Aug 2018 19:50:21 +0200 (CEST) From: Mikael Abrahamsson To: Rosen Penev cc: moeller0@gmx.de, bloat In-Reply-To: Message-ID: References: <66e2374b-f998-b132-410e-46c9089bb06b@gmail.com> <360212B1-8411-4ED0-877A-92E59070F518@gmx.de> User-Agent: Alpine 2.20 (DEB 67 2015-01-07) Organization: People's Front Against WWW MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Subject: Re: [Bloat] [Cerowrt-devel] beating the drum for BQL X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 23 Aug 2018 17:50:24 -0000 On Thu, 23 Aug 2018, Rosen Penev wrote: > Flow offloading can save quite a bit of CPU, even when done in software. > It also helps that the kernel network stack is getting better. I tried this on my 10GE x86-64 test bed. It didn't help. It's %sirq limited it seems. flowoffload changed nothing. It helps on lower end CPU platforms (I've tried it there too), but not for the 10GE forwarding case. -- Mikael Abrahamsson email: swmike@swm.pp.se