From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-yw0-x229.google.com (mail-yw0-x229.google.com [IPv6:2607:f8b0:4002:c05::229]) (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 1E2763CB35 for ; Mon, 4 Dec 2017 15:50:05 -0500 (EST) Received: by mail-yw0-x229.google.com with SMTP id l7so7209418ywa.13 for ; Mon, 04 Dec 2017 12:50:04 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=aenertia.net; s=dkimaenertianet; h=mime-version:sender:in-reply-to:references:from:date:message-id :subject:to:cc; bh=VO+RmIm1UaIvo6RrOqWYwR/F4vDncCxRrS/j9S7huRE=; b=Tq3pWi+v/XE8Zx6l1VJJP3i3mhIB6gRs/SwboomwnSR0PHq80l9mQbAADxQv7Gzl7V SpG8/syvajq6xqZomXHjwGcAi2oqmXISNbDqEllLXnVPTcy+g7Guykk4P6VvDNq3PKsu 4wP4XlL3ZxsSEjpmNUf6kShjrvSHEYr+m79ew= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:sender:in-reply-to:references:from :date:message-id:subject:to:cc; bh=VO+RmIm1UaIvo6RrOqWYwR/F4vDncCxRrS/j9S7huRE=; b=HFGBF9X2XJX7sNvG4Lv2c1VsjCwjsccmFoj/244qIiCVIn9DBBLYq444zl6tJxKI+d 9rH8kKPiobiKfBQHHOAHxmhWbAHY5eFFJ3+9RDoI4rmU65A847PMGLZigztQho2Un1DN sahs3VHfJLtfSLwHZPosqGS1Dsq6+jBY1vthkr6yRWqHwNKUpwijKcLgGZ6xpVFgYScS Qr4/QAvBNTItHGrSAij3LqseIgVhtt/Ekh8W96dnvFRa9/gJKGrSDZzCM/YCaSoZ0u4R GSmVMKOeDNAqLY4su7TqjAMe03m63uS3GpCOhmZFFziFrYd4rHbANIHLOTGoiEqi9nrB P34A== X-Gm-Message-State: AJaThX5GjkBnlzXuHISGuBtwqg9fiBTg/Ly4NP3ksSDAh2lqrt+5YVhW 6YiU032+UPrDi/n/ZImCM/QF3s6VbBiBJqSdhlxSqQ== X-Google-Smtp-Source: AGs4zMZ6ESPrKpiVUyY7BQS4MqHzplHqq3DvKVYQXYjylQu1sX/bLhwRDCpiky7qDdmx/A2S9Ab+mcSHWhLbrTdc8as= X-Received: by 10.129.121.9 with SMTP id u9mr10572040ywc.342.1512420604431; Mon, 04 Dec 2017 12:50:04 -0800 (PST) MIME-Version: 1.0 Sender: aenertia@aenertia.net Received: by 10.37.173.2 with HTTP; Mon, 4 Dec 2017 12:49:43 -0800 (PST) In-Reply-To: References: <92906bd8-7bad-945d-83c8-a2f9598aac2c@lackof.org> <87bmjff7l6.fsf_-_@nemesis.taht.net> <20171204110923.3a213986@redhat.com> From: =?UTF-8?Q?Joel_Wir=C4=81mu_Pauling?= Date: Tue, 5 Dec 2017 09:49:43 +1300 X-Google-Sender-Auth: FNR4oCE8OVZH5IfDI6qGNqtnuNU Message-ID: To: Dave Taht Cc: Jesper Dangaard Brouer , Dave Taht , "netdev@vger.kernel.org" , bloat , Christina Jacob , "cerowrt-devel@lists.bufferbloat.net" , David Ahern , Tariq Toukan Content-Type: text/plain; charset="UTF-8" Subject: Re: [Bloat] Linux network is damn fast, need more use XDP (Was: DC behaviors today) 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: Mon, 04 Dec 2017 20:50:05 -0000 On 5 December 2017 at 06:00, Dave Taht wrote: >>> The route table lookup also really expensive on the main cpu. > > To clarify the context here, I was asking specifically if the X5 mellonox card > did routing table offlload or only switching. > To clarify what I know the X5 using it's smart offload engine CAN do L3 offload into the NIC - the X4's can't. So for the Nuage OVS -> Eswitch (what mellanox calls the flow programming) magic to happen and be useful we are going to need X5. Mark Iskra gave a talk at Openstack summit which can be found here: https://www.openstack.org/videos/sydney-2017/warp-speed-openvswitch-turbo-charge-vnfs-to-100gbps-in-nextgen-sdnnfv-datacenter Slides here: https://www.openstack.org/assets/presentation-media/OSS-Nov-2017-Warp-speed-Openvswitch-v6.pptx Mark's local to you (Mountain View) - and is a nice guy, is probably the better person to answer specifics. -Joel