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 044AD1C089 for ; Fri, 13 Apr 2018 13:37:20 +0200 (CEST) Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.rdu2.redhat.com [10.11.54.3]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 731764040856; Fri, 13 Apr 2018 11:37:19 +0000 (UTC) Received: from localhost (dhcp-192-241.str.redhat.com [10.33.192.241]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 2867D10F1BF7; Fri, 13 Apr 2018 11:37:17 +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: Fri, 13 Apr 2018 13:37:14 +0200 Message-Id: <20180413113716.27968-1-jfreimann@redhat.com> X-Scanned-By: MIMEDefang 2.78 on 10.11.54.3 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.5]); Fri, 13 Apr 2018 11:37:19 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.5]); Fri, 13 Apr 2018 11:37:19 +0000 (UTC) for IP:'10.11.54.3' DOMAIN:'int-mx03.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'jfreimann@redhat.com' RCPT:'' Subject: [dpdk-dev] [PATCH v2 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: Fri, 13 Apr 2018 11:37:20 -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: --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). --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: --memory-footprint [size] Size of the VNF internal memory (MB), in which the random read/write will be done, allocated by rte_malloc (hugepages). --random-w-memory-access-per-packet [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. --random-r-memory-access-per-packet [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. --random-rw-memory-access-per-packet [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 | 42 +++++++ 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, 398 insertions(+), 3 deletions(-) create mode 100644 app/test-pmd/noisy_vnf.c create mode 100644 app/test-pmd/noisy_vnf.h -- 2.14.3