From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-yb0-f196.google.com (mail-yb0-f196.google.com [209.85.213.196]) by dpdk.org (Postfix) with ESMTP id 4B7933990 for ; Mon, 17 Oct 2016 00:33:55 +0200 (CEST) Received: by mail-yb0-f196.google.com with SMTP id 184so3477577yby.3 for ; Sun, 16 Oct 2016 15:33:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nyu-edu.20150623.gappssmtp.com; s=20150623; h=mime-version:from:date:message-id:subject:to; bh=QINfHM8iCveVJs9rDgoa7kdDrjaX7/ZQ2nozBoQE1VU=; b=hlForAHYTYKAFO5WFdBcTO7F3AfwQEt2BlJZZI+MeyFkMO89shNheSuuJH+lyKnbUb sqNKNZjN70f0o7lmtzDQQwtT3u2SnKJb3M3Lsu+Epl+lYOObIXlBfoC6NgRUQ+OsDOqm NGrJxBgz7kr35m/e2//FXUB9B8LcOi9IZ5p4lASG/HLeQfyNtmwudUzMS6UVXkO1JmDy QpitEdt1Nq+gwZ2rSTD2vUpwM+302mH5rMSMt8jcjd03zqldjCixl8cvSr1LRYxUu5au bmtRvQqlDVSeX6qVRY0MBdKkO4ALa3ZeKKCLyqIdLW5i/UAf1dHcLRtA/TZlpHjeJUef FK1g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=QINfHM8iCveVJs9rDgoa7kdDrjaX7/ZQ2nozBoQE1VU=; b=keXVTmDcMpGajv7ACBU3Wk5Kk/TVhqinini+6n+Cp5/DRkQa/xiEPb4JWiM4mbWTrm P9EUdezRyNyccLV2/LFBQhk3fRPHHWpMW+by1EH3AjeQI+VqkT7Bqew7W9rNHuyx9CCt idCPuMCUWYJxGv8DhFw1Z+FhR3O6UTJALcHJ4jN24hUZ5tANJr3wwx6hcg9mIDi07GLN rYLXaQEDVinGR/w3t1P6FBUzGB8slJLEfN630CwD24ld1VOGutnmcziNkHLsxhd+hax+ CUfuWfBuWEC89UtJ5V1RvcZTdjWvu52AMx6wCLLoFTphntlU7RfxO/cW0sI7qMpZQ1jZ 0S3A== X-Gm-Message-State: AA6/9RkNrCkp1IyDL216FktKY52RY6/8Rzt16j6gPhlwGTtlFAnAzCpqC0sSgou+24mULOdKumnxodkOdzVfdJz5 X-Received: by 10.37.170.16 with SMTP id s16mr20889245ybi.40.1476657234537; Sun, 16 Oct 2016 15:33:54 -0700 (PDT) MIME-Version: 1.0 Received: by 10.37.45.40 with HTTP; Sun, 16 Oct 2016 15:33:54 -0700 (PDT) From: Ajinkya D Kadam Date: Sun, 16 Oct 2016 18:33:54 -0400 Message-ID: To: users@dpdk.org Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.15 Subject: [dpdk-users] TimeStamping Packets Generated and Received via Pktgen Application 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: Sun, 16 Oct 2016 22:33:55 -0000 Hi All, I am newbie to DPDK, and pkt-gen traffic generator. I am doing performance testing and I care about precise timestamps for each packet received and sent out a port. I see that there is a solution developed here [1]. However it gives about 100ns seconds of precision . My first question is, can we achieve more precision ?? If yes I would like to modify the pktgen code so that each transmitting and received packet is timestamped. Right now I am exploring the example applications like rxtx_callbacks which timestamps packets in DPDK, Is this the right direction to go ? i would highly appreciate any guidance. Thanks all for your time and help. [1] https://github.com/hpcn-uam/iDPDK-Speedometer/tree/release/src =E1=90=A7