From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qk0-f176.google.com (mail-qk0-f176.google.com [209.85.220.176]) by dpdk.org (Postfix) with ESMTP id DD6272C8; Wed, 21 Jun 2017 05:32:46 +0200 (CEST) Received: by mail-qk0-f176.google.com with SMTP id r62so73189114qkf.0; Tue, 20 Jun 2017 20:32:46 -0700 (PDT) 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=ef67KvSMjiSLZrDSVxA6donwvoyaSgsG4t1/ENyo1tg=; b=CZgYgPHwhblbjyKAlJDPYx5XEczj3397qzHDAt2/Sm/XnxYAe5D9MqQho7fC715ejD WmWRktHhopkUfTV03Xi6F9yiQKIf2lU4opr2S47OX6tuK5QOULPbRwOViIvMfbf9LSRk ritf4QToDUJ8vWTXOF4J93Cavg5wac7uSjvJgxrCNkWVDX2FwqNzcQZajVxqLSLzUgNg Y5qe1JtBZSWI2MZb3CYd6yVcHItw33fi7P4hClx8l1i5y5s8xRCKMU2DdZ/IKFTAZL79 crCdfALSHM2iRxKyC+4dMKDKatQgcvsC5KVredAxk52KlP9UZOkIV0ti4EcQ8bmLgdE7 u58Q== 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=ef67KvSMjiSLZrDSVxA6donwvoyaSgsG4t1/ENyo1tg=; b=C2JdaWvDpJJZqEG2S7zooTTutj12SqvC0LhWXSvaWj3TwI/iO2oreEx+CnD68imwY9 35fruSWLX8/U8CSjFbaC0tfGPoY3eK9R8/5GM8qAdTbH5c0dNHP38uVBgbEhI062Dv0/ LXK9NXeW9a9txZrwryg9BDB76wIaqSy+Nbcq1pTbZcZ11MA6z0Csn5yfUq90vCmwzJBQ UlPwLaDm7RPvLA9YvzdPnNylAeCF1Yxui4JIhoc/n9uOvDdIAADcS24uiwOtB1Iusp5c ploQ0kVp9sP3c3Ew6mv34+KKIBQXKHZIMbBYlZu2BT8sNVJFm0OTtR4lAYuL7Ygy+aY7 X87w== X-Gm-Message-State: AKS2vOwkhFmh3bfREgRL+9MjVU6WdE5hkDhKqaRpbug1JESj6TGgnO8e Yz6iujGELD6jNLXUfwOIxPAyfFEAXA== X-Received: by 10.55.75.68 with SMTP id y65mr37825929qka.27.1498015965904; Tue, 20 Jun 2017 20:32:45 -0700 (PDT) MIME-Version: 1.0 Received: by 10.140.90.72 with HTTP; Tue, 20 Jun 2017 20:32:45 -0700 (PDT) From: Sam Date: Wed, 21 Jun 2017 11:32:45 +0800 Message-ID: To: dev@dpdk.org, users@dpdk.org, qemu-devel@nongnu.org, qemu-discuss@nongnu.org Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.15 Subject: [dpdk-dev] Will huge page have negative effect on guest vm in qemu enviroment? 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, 21 Jun 2017 03:32:47 -0000 Hi all, We plan to use DPDK on HP host machine with several core and big memory. We plan to use qemu-kvm enviroment. The host will carry 4 or more guest vm and 1 ovs. Ovs-dpdk is much faster then normal ovs, but to use ovs-dpdk, we have to enable huge page globally. My question is, will huge page enabled globally have negative effect on guest vm's memory orperate or something? If it is, how to prevent this, or could I enable huge page on some core or enable huge page for a part of memory? Thank you~