From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lf0-f65.google.com (mail-lf0-f65.google.com [209.85.215.65]) by dpdk.org (Postfix) with ESMTP id A58492935 for ; Thu, 14 Apr 2016 18:31:32 +0200 (CEST) Received: by mail-lf0-f65.google.com with SMTP id o124so13008678lfb.2 for ; Thu, 14 Apr 2016 09:31:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=content-transfer-encoding:from:mime-version:date:subject:message-id :to; bh=vTafZs9zkfAxYYwQKw/Tk+tiN4Qw/BxQuiDBlhPvFa0=; b=OqiCTAZGE0q0xoc9qlNvjahDhvXBftBOhJMMRWiCL8kpGzoHxPZi0wkwZvk8OpLsu5 3G5CbkKOdghNJhp7RWMSCzHhves/SIzzDXfmh7dx1mBLGNqdXw9L4bYYZK+t0EaPHUNZ wUTazZdQbGmfNH7QSE9D9knUQ/f3sH7obSiaE2gyGvHq2IgF99+pKnwey0B85PgMEoXN XzJHp9DTGbxW3StkTHVExNOisZFW1vwhqjad78Eka+mYJE3ak0/ByX5DIrav3ZL5TL/F l4ppdnPRlHQUy6WMMtX05FHpnqksLwVLkUTAo7aC0vstB9mKCqkNOazVVOxoBAq1Osra 4xTg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:content-transfer-encoding:from:mime-version:date :subject:message-id:to; bh=vTafZs9zkfAxYYwQKw/Tk+tiN4Qw/BxQuiDBlhPvFa0=; b=G2tPv33lDtq/mvQws1BP5zhi0OGflGlfJ2Yb2DRGDOOOSMmQeAgbPeAkWcR++AWgQF Vf044QNpj8H8XqDFyacO2ZrEjnhz3Yewi0C6zCB2wKQ5MAzi3KgKn+XUWqiOpu3h3StC 397Ko+DDOO23QcHv5RGYv0e94TAIv1gElFj7yv58KcG72+lKHJoCYyohWpLowuAK8xLn Joz90jxA2oAQNyNyCEfQk5FGxFC/ivXXdDBKLIp51onwNu2ueDQSwrV1XwXMMeOZ0Nz2 H8OMHgwi3MVWuudTGuBmxyvX4bjs1VOuMoSzo05E3lg8KL14AIyFjZE5Fj2bVzSTPGQp XzUQ== X-Gm-Message-State: AOPr4FWMbB99umHCFT+Bh4FvXZzdGx9+XbDmLi5dn8yjtNDtGScvOU5XuWBobYoU8u9RvA== X-Received: by 10.112.172.34 with SMTP id az2mr6938913lbc.121.1460651492362; Thu, 14 Apr 2016 09:31:32 -0700 (PDT) Received: from [10.250.153.86] ([31.173.84.82]) by smtp.gmail.com with ESMTPSA id xx7sm6758039lbb.19.2016.04.14.09.31.31 for (version=TLSv1/SSLv3 cipher=OTHER); Thu, 14 Apr 2016 09:31:31 -0700 (PDT) From: Alexander Kiselev Mime-Version: 1.0 (1.0) Date: Thu, 14 Apr 2016 19:31:30 +0300 Message-Id: <9485D7B0-E2EA-4D23-BBD9-6D233BDF8E29@gmail.com> To: users@dpdk.org X-Mailer: iPad Mail (13E233) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.15 Subject: [dpdk-users] Lcore impact X-BeenThere: users@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: usage discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 14 Apr 2016 16:31:32 -0000 Could someone give me any hints about what could cause permormance issues in= a situation where one lcore doing a lot of linux system calls (read/write o= n socket) slow down the other lcore doing packet forwarding? In my test the f= orwarding lcore doesn't share any memory structures with the other lcore tha= t sends test data to socket. Both lcores pins to different processors cores.= So therotically they shouldn't have any impact on each other but they do, o= nce one lcore starts sending data to socket the other lcore starts dropping p= ackets. Why?