From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-io1-f41.google.com (mail-io1-f41.google.com [209.85.166.41]) by dpdk.org (Postfix) with ESMTP id 1A77A1B476 for ; Thu, 22 Nov 2018 17:12:47 +0100 (CET) Received: by mail-io1-f41.google.com with SMTP id a3so6952996ioc.4 for ; Thu, 22 Nov 2018 08:12:47 -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=4xmlfJfGNkUfurKBRuHqbh3a8NHHk+vL8Jys7Q39RPQ=; b=a0z0N+QLgCS2lSKiJnIhVDy171BXWnMg5sI24U7vL+sol3Ws9gUmCRCB+qRtVHvMnF bPyB68cVqReQuZZiS5DuexEEQhjYKhSfSgG57UMlZze4BId0PgDRUns6PPAIqQFAoGgO mVYsIQZVXuxtdwExyGVUUXlMVvZRFZxx+/DdT5z6q7QlS1eRX4kVgtKAI9eWbSqscNw2 awRjRfbAMhexsiAbYH+lrxf8x229cB91qCtpDOzaqXN8DqiCiUXqvcYdXVM7o79lSxdp C4bMN0HImDMfsKeGx8Lj1UVIrSeowthHofg9AsskVRmUZ+W0w1o2tGDlY0VL9vnNW4G2 OQ2w== 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=4xmlfJfGNkUfurKBRuHqbh3a8NHHk+vL8Jys7Q39RPQ=; b=GEKoEtOy1SENFkaBlbJ3eTwOF9QsxVvYuo9TSxg8IMq1uCdzDx9eZRtqLFtmidClHg 02uYct2+TaVAhHsdM+epp+y7Lc8/Wb9w232vpqrmJfZWwDmtqzPGArMvYOxEr1WBeUEo IPXeS87o6ixwwnqTijZ2TdSMPf/RO1R4T+0mUBO9bu6pgspdU59eZ9Ttt2d8na0HclJh sUl19xvwO0do6GF+LjfraCugORsbEgw6uNd9qCIzXq+0QI/tXFuoebQzYEvAwwXhEvo/ eEooDZnaJ/0UbkeaZxxSwPHVr85sTOCPup/2rVz98cQZI6t46ktxooZMmqWcKgSS7Le4 gSgQ== X-Gm-Message-State: AA+aEWaEl4NRtPU0qfJrVtVFUFOO1N59g41chl5Zpl1RhxdrkHpNt9sm wn445QNUjJ+oEYYKlGhjGL5iRx8qxHhR6SjlfUvTPsSG X-Google-Smtp-Source: AFSGD/XYpTCM6SaA2/gH6ELD86ROynSjrcURJUOheGF1zHJitJdWZddf865xxT5ualwEjedyWWCeXpPdV65g9dpYxNo= X-Received: by 2002:a6b:b589:: with SMTP id e131mr7940097iof.41.1542903166336; Thu, 22 Nov 2018 08:12:46 -0800 (PST) MIME-Version: 1.0 From: ikuzar RABE Date: Thu, 22 Nov 2018 17:12:35 +0100 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] Timestamping packets with 40G rate 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: Thu, 22 Nov 2018 16:12:47 -0000 Hi all, I would like to timestamp packets read from intel NIC XL710QDA2 40G I found three ways to timestamp packets, using: 1. PTP 2. HPET 3. TSC Q1. Are there other ways to timestamp packets ? Q2. related to 1) is it possible to timestamp each packet (and not each burst)? Q3. related to 1) is there a time synchronisation with remote server ? Q4. related to 2) I saw that there is perfomance issue with HPET, is it the case with release 17 of DPDK ? Q5. related to 3) is there a way to convert the return value of rte_rdtsc(); ? Q6. what is the common way to timestamp EACH packet in 40Gbit/s rate ? Regards, ikuzar