From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx1.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by dpdk.org (Postfix) with ESMTP id 9B68F71B3 for ; Thu, 19 Apr 2018 08:59:41 +0200 (CEST) Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 13B6D406803E; Thu, 19 Apr 2018 06:59:41 +0000 (UTC) Received: from localhost (ovpn-117-19.ams2.redhat.com [10.36.117.19]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 557AE7C25; Thu, 19 Apr 2018 06:59:38 +0000 (UTC) From: Jens Freimann To: dev@dpdk.org Cc: ailan@redhat.com, jan.scheurich@ericsson.com, vkaplans@redhat.com, bruce.richardson@intel.com, thomas@monjalon.net, maxime.coquelin@redhat.com, konstantin.ananyev@intel.com, ferruh.yigit@intel.com Date: Thu, 19 Apr 2018 08:59:34 +0200 Message-Id: <20180419065936.7288-1-jfreimann@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.11.54.5 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.5]); Thu, 19 Apr 2018 06:59:41 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.5]); Thu, 19 Apr 2018 06:59:41 +0000 (UTC) for IP:'10.11.54.5' DOMAIN:'int-mx05.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'jfreimann@redhat.com' RCPT:'' Subject: [dpdk-dev] [PATCH v3 0/2] testpmd: simulating noisy host environment 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: Thu, 19 Apr 2018 06:59:41 -0000 This series adds a new forwarding mode 'noisy'. It proposes enhancements to testpmd to simulate more realistic behavior of a guest machine engaged in receiving and sending packets performing Virtual Network Function (VNF). The goal is to enable simple of measuring performance impact on cache and memory footprint utilization from various VNF co-located on the same host machine. This series of patches adds the new command line switches to testpmd: --noisy-buffersize-before-sending [packet numbers] Keep the mbuf in a FIFO and forward the over flooding packets from the FIFO. This queue is per TX-queue (after all other packet processing). --noisy-flush-timeout [delay] Flush the packet queue if no packets have been seen during [delay]. As long as packets are seen, the timer is reset. Options to simulate route lookups: --noisy-memory-footprint [size] Size of the VNF internal memory (MB), in which the random read/write will be done, allocated by rte_malloc (hugepages). --noisy-nb-rnd-write [num] Number of random writes in memory per packet should be performed, simulating hit-flags update. 64 bits per write, all write in different cache lines. --noisy-nb-rnd-read [num] Number of random reads in memory per packet should be performed, simulating FIB/table lookups. 64 bits per read, all write in different cache lines. --noisy-nb-rnd-read-write [num] Number of random reads and writes in memory per packet should be performed, simulating stats update. 64 bits per read-write, all reads and writes in different cache lines. Comments are appreciated. regards, Jens Jens Freimann (2): testpmd: add forwarding mode to simulate a noisy neighbour testpmd: update testpmd documentation to include noisy forwarding mode app/test-pmd/Makefile | 1 + app/test-pmd/noisy_vnf.c | 184 ++++++++++++++++++++++++++++ app/test-pmd/noisy_vnf.h | 41 +++++++ app/test-pmd/parameters.c | 55 ++++++++- app/test-pmd/testpmd.c | 68 ++++++++++ app/test-pmd/testpmd.h | 17 +++ doc/guides/testpmd_app_ug/run_app.rst | 27 ++++ doc/guides/testpmd_app_ug/testpmd_funcs.rst | 7 +- 8 files changed, 397 insertions(+), 3 deletions(-) create mode 100644 app/test-pmd/noisy_vnf.c create mode 100644 app/test-pmd/noisy_vnf.h -- 2.14.3