From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr1-f54.google.com (mail-wr1-f54.google.com [209.85.221.54]) by dpdk.org (Postfix) with ESMTP id 4753B201 for ; Sat, 2 Mar 2019 03:32:23 +0100 (CET) Received: by mail-wr1-f54.google.com with SMTP id i16so27774227wrs.13 for ; Fri, 01 Mar 2019 18:32:23 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=NlN1NAvwRJSxFxjf1+3um3y8Ho3QysrO6oi3L6sq7KY=; b=BqGARya/Q4hL+LAZAOo/8dJMyAAJijL8BiFGmbiO7fwD1gLav9g/XQBBCE9MKf12cI fTnNuEg1ShVAXw6Oivn131gJ63PRyqzO/UwmTenZvksRgNUWDLh81vj1iOoshnTBboIG 4IgYAc9ML/ECeRjbOcDbc7UwOwamWJN7ksSnrg8zXNeoGFpvGVb6/HFFcgkUjpsFkJlQ CMFDD/83VM5Bfwai+qUlvasuwQ8Sa/o+N/1gvQFaDIQBsXurAdBzFDL+IbNxWt7d8XD0 ekQ4O51hapDgIDyjOsoRkSpUdlwiiRnbzn8xJnfSl+ZFG+QnU/IOxHD4vw7SQsKgcx3T xD+A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=NlN1NAvwRJSxFxjf1+3um3y8Ho3QysrO6oi3L6sq7KY=; b=iY9tQCT1IhHjlMx2pBHvKRb3uIy992usQ+8z5cLLb0eQlfVPKHQiqd4ax/FqS3LzwO RAXReuP6OrsQcsHFn+FG5hUVuC4mmx7CgK5Kf6e5NQvUi/+7VlWazJIN9r/8Rd9quZbW Ac6nQLWUUPno8G7seGiVDPKbq8pAZvQLdAy/rOb1O7MXPcXaR5CLkYLdcHhCqsjn+4Zj 3Z8VT6UkBq+gTlQoZCIEfdUQcsPkiAbpBSMlmVVQgdKVJlOZmXjHJ+1s0KhLRnIvOKCZ tBg1ZKO3mlZThNF+YNfrcd0WAKJGAkW6/MsrpNq0mFEwdgDefa4o4VHVe7qEKi+DKo3L /P4Q== X-Gm-Message-State: APjAAAX346HPx51fg9IYTieyIRaoD5VpqJvowqrI8ZAI4ird27cgybhR sWAp/kU1r3irZIb06/TmGlGTuxClpVWIpAt8ikBTG2Tm X-Google-Smtp-Source: APXvYqw2pbj2RWYqVEtl+YYxsQVpWGQ/CS/w17g9f56ONUPIYZlVrbS6QK4i+/R8xtZ5/pNB/Ov1pnlvtMiRjvv4NLU= X-Received: by 2002:a05:6000:1c2:: with SMTP id t2mr5663440wrx.109.1551493942495; Fri, 01 Mar 2019 18:32:22 -0800 (PST) MIME-Version: 1.0 From: Dheeraj Dang Date: Sat, 2 Mar 2019 08:02:11 +0530 Message-ID: To: "users@dpdk.org" Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.15 Subject: [dpdk-users] Packet Drop in same NUMA X-BeenThere: users@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK usage discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 02 Mar 2019 02:32:23 -0000 Hi all, I m facing one issue in which packets are continuously dropped at vhost level in same numa configuration. *PMD Thread Core Affinity* pmd thread numa_id 1 core_id 17: isolated : false port: dpdk0 queue-id: 0 port: vhu43378b38-cb queue-id: 0 port: vhu8d094814-25 queue-id: 0 *Case I: When receiver application on VM is using numa_id 0 and pmd_thread is using numa_id 1* Packet is going from vhost to VM via QPI Intel(r) QPI traffic estimation in bytes (data and non-data traffic outgoing from CPU/socket through QPI links): QPI0 QPI1 --------------------------------------------------------------------------------------------------------------- SKT 0 3% 4% SKT 1 3% 3% In this case, no packet is dropped at vhost level. *Case II: When my receiver application is using numa_id 1 and pmd_thread is using numa_id 1* QPI monitoring Intel(r) QPI traffic estimation in bytes (data and non-data traffic outgoing from CPU/socket through QPI links): QPI0 QPI1 --------------------------------------------------------------------------------------------------------------- SKT 0 0% 0% SKT 1 0% 0% In this case, I m facing continuous packet drop at vhost level. Following things that I tried, but none of them worked 1. RX descriptors values (512, 1024, 2048, 4096) 2. MBUF_CACHE_SIZE values (128, 512) Please suggest where I m doing wrong? Maybe I've missed something and compute node is missing some configuration that is causing this issue. Regards Dheeraj Dang