From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from NAM01-SN1-obe.outbound.protection.outlook.com (mail-sn1nam01on0060.outbound.protection.outlook.com [104.47.32.60]) by dpdk.org (Postfix) with ESMTP id 16B02377A for ; Thu, 30 Nov 2017 08:24:44 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=CAVIUMNETWORKS.onmicrosoft.com; s=selector1-cavium-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=Y2OTns+nwQGUZiTob7bhVLBNy4eB8IxE8ifSZR68mwc=; b=XbGnilPvn09jEngWonikHZVdptFblI1T/7yd2QzvPFuZ+mxM1yx+lSxNLd2B8jCzEXZEbX9pfva55b/gJdSglfMlCxVPmb9Zvhqwsfs+uTUvq3WIjREbl12qGAfTL0K6Kg2PCjB10+PWdUlqPlSk68F1vqvafJISTJXExX178lw= Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=Pavan.Bhagavatula@cavium.com; Received: from Pavan-LT.caveonetworks.com (111.93.218.67) by DM5PR07MB3468.namprd07.prod.outlook.com (10.164.153.23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P256) id 15.20.260.4; Thu, 30 Nov 2017 07:24:36 +0000 From: Pavan Nikhilesh To: jerin.jacobkollanukkaran@cavium.com, gage.eads@intel.com, harry.van.haaren@intel.com, bruce.richardson@intel.com, hemant.agrawal@nxp.com, nipun.gupta@nxp.com, nikhil.rao@intel.com Cc: dev@dpdk.org, Pavan Nikhilesh Date: Thu, 30 Nov 2017 12:54:06 +0530 Message-Id: <20171130072406.15605-4-pbhagavatula@caviumnetworks.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20171130072406.15605-1-pbhagavatula@caviumnetworks.com> References: <20171130072406.15605-1-pbhagavatula@caviumnetworks.com> MIME-Version: 1.0 Content-Type: text/plain; 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Measure the end-to-end performance of an event dev with a ethernet dev. +#. Maintain packet ordering from Rx to Tx. + +.. _table_eventdev_perf_pipeline_test: + +.. table:: Perf pipeline test eventdev configuration. + + +---+--------------+----------------+-----------------------------------------+ + | # | Items | Value | Comments | + | | | | | + +===+==============+================+=========================================+ + | 1 | nb_queues | nb_producers * | Queues will be configured based on the | + | | | nb_stages | user requested sched type list(--stlist)| + +---+--------------+----------------+-----------------------------------------+ + | 2 | nb_producers | >= 1 | Producers will be configured based on | + | | | | the number of detected ethernet devices.| + | | | | Each ethdev will be configured as an Rx | + | | | | adapter. | + +---+--------------+----------------+-----------------------------------------+ + | 3 | nb_workers | >= 1 | Selected through --wlcores command line | + | | | | argument | + +---+--------------+----------------+-----------------------------------------+ + | 4 | nb_ports | nb_workers + | Workers use port 0 to port n. | + | | | nb_producers | Producers use port n+1 to port n+m, | + | | | | depending on the Rx adapter capability. | + +---+--------------+----------------+-----------------------------------------+ + +.. _figure_eventdev_perf_pipeline_test: + +.. figure:: img/eventdev_perf_pipeline_test.* + + perf pipeline test operation. + +The perf pipeline test configures the eventdev with Q queues and P ports, where +Q and P is a function of the number of workers, the number of producers and +number of stages as mentioned in :numref:`table_eventdev_perf_pipeline_test`. + +The user can choose the number of workers and number of stages through the +``--wlcores`` and the ``--stlist`` application command line arguments +respectively. + +The number of producers depends on the number of ethernet devices detected and +each ethernet device is configured as a event_eth_rx_adapter that acts as a +producer. + +The producer(s) injects the events to eventdev based the first stage sched type +list requested by the user through ``--stlist`` the command line argument. + +Based on the number of stages to process(selected through ``--stlist``), +The application forwards the event to next upstream queue and when it reaches +the last stage in the pipeline if the event type is ``atomic`` it is enqueued +onto ethdev Tx queue else to maintain ordering the event type is set to +``atomic`` and enqueued onto the last stage queue. +On packet Tx, application increments the number events processed and print +periodically in one second to get the number of events processed in one +second. + + .. Note:: + + * If the event device doesn't support ``all types queue`` and the last + stage is not ``atomic`` then an additional ``atomic`` queue is created + to maintain packet ordering before Tx. + +Application options +^^^^^^^^^^^^^^^^^^^ + +Supported application command line options are following:: + + --verbose + --dev + --test + --socket_id + --pool_sz + --wlcores + --stlist + --worker_deq_depth + --prod_type_ethdev + + +.. Note:: + + * The ``--prod_type_ethdev`` is mandatory for running this test. + +Example +^^^^^^^ + +Example command to run perf pipeline test: + +.. code-block:: console + + sudo build/app/dpdk-test-eventdev -c 0xf -s 0x8 --vdev=event_sw0 -- \ + --test=perf_pipeline --wlcore=1 --prod_type_ethdev --stlist=ao -- 2.7.4