From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: <shaklee3@gmail.com> Received: from mail-vk0-f45.google.com (mail-vk0-f45.google.com [209.85.213.45]) by dpdk.org (Postfix) with ESMTP id A3E7237A8 for <users@dpdk.org>; Wed, 13 Apr 2016 18:42:29 +0200 (CEST) Received: by mail-vk0-f45.google.com with SMTP id k1so77494227vkb.0 for <users@dpdk.org>; Wed, 13 Apr 2016 09:42:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to; bh=/KkcVkOksta+ovgvslI4oR0HhaeUKPFD7WT5Sf4glJc=; b=y6iTwAPrXY+pssOj7t+DtUxkhssd3rhMkTsZH4kLrjIssyzCafc27TV8u2OaBHouam 8nnXUXAb3U88W+/BaswSCwptWylKrFhn/Fv5BlBoTH6F2mOloLo0zstsUHLqjn838Oo/ 3PaYveAfDcyKzoCGC2g3F71QEenD63qi8k4o+Xo+47XWTlqBFc3XDxIFnqNA3dGVQwd2 hYk7YYt1AdHlaCVJlkrYSDkluNoPglW2cjIsjkntFK37alGswncKQfVQC0MZFCkIlLgL PcETcwLwAJVESgOzyFkp+DIFDU826WdCJRgbMdWjdXkllFUOa9IJzikCMHCyEBi6+gP5 yQlQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:date:message-id:subject:from:to; bh=/KkcVkOksta+ovgvslI4oR0HhaeUKPFD7WT5Sf4glJc=; b=learAHR/vj9PmUmeKBA7iVl/CGkhSGVgEpPZxgMX6nHsUL2yOxCEqgr3yfNnyCsG+k tv6MvsF2F0RrfLEiCi8fAZifxOJtxSdZWtZosqLJ0Q2J8m3P1QnBjlASedmSp2utEm2c NfozSaWGnBc/1CiJzMaZagZhViOn4WcJh9iMK6zAQcw7ywQXDfd12odYVF2YAzSG0Qo6 nV31nN0uLrcLOG3u/qyNofYPbUVgzn6SbkL93n4Sd8FtyWqHF8/tNalv5Rgbq49YaluQ 96t1EiI08O+GaGUNI4hsLMEOsSANjtTCsxQD3OxPec79WQAfMLWtjgeSGvIRJHVj7Bwn 1sAg== X-Gm-Message-State: AOPr4FVXb64xi3NGOkj2EV/CVM3BjQnIMhM0HPGuYUyJrf7FQvaZMBx0+8+HP7mc8NHvlNrgrPN2CrH1v/tMcw== MIME-Version: 1.0 X-Received: by 10.176.6.166 with SMTP id g35mr4575747uag.63.1460565749071; Wed, 13 Apr 2016 09:42:29 -0700 (PDT) Received: by 10.176.5.194 with HTTP; Wed, 13 Apr 2016 09:42:29 -0700 (PDT) Date: Wed, 13 Apr 2016 09:42:29 -0700 Message-ID: <CA+Gp1nZC3wR1p5NQh2zcB1doaxNvSfhijFLo3rh5-iWOkT1YqQ@mail.gmail.com> From: Cliff Burdick <shaklee3@gmail.com> To: users <users@dpdk.org> Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.15 Subject: [dpdk-users] Coremask X-BeenThere: users@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: usage discussions <users.dpdk.org> List-Unsubscribe: <http://dpdk.org/ml/options/users>, <mailto:users-request@dpdk.org?subject=unsubscribe> List-Archive: <http://dpdk.org/ml/archives/users/> List-Post: <mailto:users@dpdk.org> List-Help: <mailto:users-request@dpdk.org?subject=help> List-Subscribe: <http://dpdk.org/ml/listinfo/users>, <mailto:users-request@dpdk.org?subject=subscribe> X-List-Received-Date: Wed, 13 Apr 2016 16:42:30 -0000 I don't see the answer to this in the documentation, so I'll try here. Why function does the coremask that's required in rte_eal_init() actually do other than tell the API what cores you're using? In other words, can't I just set the core mask to all of the cores in my system, and selectively use the ones I want? Is there a downside to that? What if the particular thread running on an lcore isn't doing any DPDK functions?