From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f43.google.com (mail-wm0-f43.google.com [74.125.82.43]) by dpdk.org (Postfix) with ESMTP id E9A74DE3 for ; Wed, 23 May 2018 08:59:26 +0200 (CEST) Received: by mail-wm0-f43.google.com with SMTP id j4-v6so5947776wme.1 for ; Tue, 22 May 2018 23:59:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=6wind-com.20150623.gappssmtp.com; s=20150623; h=subject:to:references:from:organization:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=PWzaHB2TlnGKoVDCqgzwdNcCpA4g4NnrVV/XJAJZNSA=; b=t9SESzw5yImxGnragyoAm+/HzfoTaCOQggg9bMzCOht0XEHKWl1AH/TJJWeD5hmzh+ SGiRLyksE4m5/GqPQVSPSdf7Uy75UcEf0qXPvRzb6oGlXYLF0ccVirhSI2OrjrT7wIc3 yq7scsvHCL38q30hna92vPSpb+54Fx/bnCVKv0MpL7K53IitXlajmDRqpNNsxgqnRO0q rr2jkJFSIZD51qrC/79n6BJ7L1guVYj5Gi6J8ym/Z91T2DAoK9HznPPZ6Yd09XYE4sId P7bNETf/IHlavpWOAXHSaBe/F7XIrb+yMZwswX7GYDeB19vRbz9hM4sNQ7HLwcZPv/qn AJkQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:organization :message-id:date:user-agent:mime-version:in-reply-to :content-language:content-transfer-encoding; bh=PWzaHB2TlnGKoVDCqgzwdNcCpA4g4NnrVV/XJAJZNSA=; b=X0no9n+atS1gh0jmfRLWVvUjUDsoLr6ILucx1JyyP66kh3S6vAjdCBy2jh5wP9USiA 8jOaffwc6Bd1MUbpHPx6uVH02I4uDY8LceehkiWnKPu4If4RstL79fHC+lqNGVhRBfvd 8jDGprWxSPAQRrIEz0rpuc/OeYps7h+lJkC8agfDkLIEUK8Rd4UVXv9lKOlpBwk6H1vw ckWMDbJAIusZVLwTRshGlFdEZUzcllOtWmu3JJ2CEkNFSWvpp3wXwa0FVzop4zKqxATT WdcGf9tJI59C2/jdjnI86DDX7+H2if3g3QR5o3syXt0TskTuj5CS/a8/0xlXPvLwWBX0 PAzw== X-Gm-Message-State: ALKqPwdWURl1hZtvnq+7tq/y68sK3b0XLZ9B5S+AnUgiwrSQBqou7yr9 saWTX2+VQBOwmI7QSf4gLWBQYA== X-Google-Smtp-Source: AB8JxZpuorHBtXcspwGXTOmICmO1/LDc+PxhFf99CsOI3RwdeEps98Nk8WwW5XahIJZuxVprPjaghA== X-Received: by 2002:a7b:c011:: with SMTP id c17-v6mr3589763wmb.78.1527058766462; Tue, 22 May 2018 23:59:26 -0700 (PDT) Received: from [192.168.128.28] (46.215.7.93.rev.sfr.net. [93.7.215.46]) by smtp.gmail.com with ESMTPSA id p38-v6sm2536500wrc.11.2018.05.22.23.59.25 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 22 May 2018 23:59:25 -0700 (PDT) To: "Wang, Qihua (NSB - CN/Hangzhou)" , "dev@dpdk.org" References: From: Vincent JARDIN Organization: www.6wind.com Message-ID: Date: Wed, 23 May 2018 08:59:25 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit Subject: Re: [dpdk-dev] avp pmd driver performance decreased from DPDK 1604 to 1705 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 23 May 2018 06:59:27 -0000 Le 23/05/2018 à 07:52, Wang, Qihua (NSB - CN/Hangzhou) a écrit : > Hi DPDK expert, > I am Nokia engineer. We are upgrading 6wind from 6wind 4.13->4.17, with DPDK upgrading from 16.04->17.05. We use AVP PMD driver. > From the performance test result, the CPU load of RX core increase from 72% to 94% under same pps. The bitrate decreased from 9800M to 9000M, limitation is also in RX core. > The difference is only 6wind software and DPDK code. > Do you have some test result for DPDK AVP PMD driver for release 16.04 and 17.05? > Do you have some suggestion to increase the AVP PMD driver performance? Is the later version have any improvement for AVP? > > Waiting for your response. For such issues, I strongly advise that you contact your 6WIND's support person. People on this mailing list may not care about performance degradation with WindRiver's AVP PMD. My advise regarding PMD performances: you should check with testpmd + AVP PMD if there is any performance decrease. testpmd is used to isolate and test specifically the throughput of the drivers. When you'll run testpmd, you can check any differences using "perf top" with both versions of DPDK and then you should report these differences to some DPDK experts. best regards, Vincent