Intel DPDK 20.02 网卡性能测试报告

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"DPDK_20_02_Intel_NIC_performance_report.pdf" 是一份由Intel DPDK验证团队在2020年2月24日发布的性能报告，主要针对Intel 710/82599网卡在DPDK (Data Plane Development Kit)环境下的性能进行测试。该报告详细记录了使用DPDK工具如testpmd和l3fwd进行的一系列测试，旨在评估Intel网络接口控制器(NICs)在数据包处理中的表现和无丢包能力。报告中包含了多个测试案例，对不同型号的Intel NIC进行了详尽的分析： 1. 测试案例1：针对Intel Ethernet Converged Network Adapter X710-DA4，执行了RFC2544零丢包测试，这是衡量网络设备在高负载下保持无丢包能力的标准测试。 2. 测试案例2：在2个Intel Ethernet Converged Network Adapter XL710-QDA2上进行同样的RFC2544测试，考察双端口网卡在并行处理时的性能。 3. 测试案例3：考察i40e PMD (Poll Mode Driver)在单核上的性能，这涉及到驱动程序如何有效地利用CPU资源进行数据处理。 4. 测试案例4：针对2个Intel Ethernet Converged Network Adapter 82599ES进行的RFC2544零丢包测试，这进一步扩展了对多端口设备的性能评估。 5. 测试案例5：考察ixgbe PMD在单核上的性能，ixgbe是Intel另一款网卡的驱动程序。 6. 测试案例6：在2个Intel Ethernet Network Adapter XXV710-DA2上进行的RFC2544零丢包测试，继续测试不同硬件配置下的性能。 7. 测试案例7：报告中可能还包括其他更多测试，但未提供具体细节。报告的硬件和软件组件部分详细列出了用于测试的平台，例如Intel Xeon Platinum 8180处理器（38.5M Cache, 2.50GHz），这是一款高性能服务器级CPU，适合处理大规模的数据包处理任务。同时，还列举了操作系统、DPDK版本和其他必要的软件环境，以确保测试的可重复性和一致性。通过这些测试，读者可以了解Intel 710/82599网卡在DPDK加速下的性能瓶颈、处理能力和效率，为数据中心、云计算环境以及高性能网络应用的部署提供重要参考。对于网络工程师、系统架构师以及DPDK开发者来说，这份报告提供了宝贵的性能指标和优化建议。

DPDK Performance Report

Release 20.02

Audience and Purpose

The primary audience for this test report are architects and engineers implementing the Data Plane

Development Kit (DPDK). This report provides information on packet processing performance testing

for the specified DPDK release on Intel® architecture. The initial report may be viewed as the baseline

for future releases and provides system configuration and test cases based on DPDK examples.

The purpose of reporting these tests is not to imply a single “correct” approach, but rather to provide

a baseline of well-tested configurations and procedures with reproducible results. This will help guide

architects and engineers who are evaluating and implementing DPDK solutions on Intel® architecture

and can assist in achieving optimal system performance.

Test setup:

The device under test (DUT) consists of a system with an Intel® architecture motherboard populated

with the following;

 A single or dual processor and PCH chip, except for System on Chip (SoC) cases

 DRAM memory size and frequency (normally single DIMM per channel)

 Specific Intel Network Interface Cards (NICs)

 BIOS settings noting those that updated from the basic settings

 DPDK build configuration settings, and commands used for tests

Connected to the DUT is an IXIA

, a hardware test and simulation platform to generate packet traffic to

the DUT ports and determine the throughput at the tester side. The IXIA is used to implement RFC2544

on the DUT.

Benchmarking a DPDK system requires knowledge of networking technologies including

knowledge of network protocols and hands-on experience with relevant open-source

software, such as Linux*, and the DPDK. Engineers also need benchmarking and debugging

skills, as well as a good understanding of the device-under-test (DUT) across compute and

networking domains.

DPDK L3fwd Test Case: Documentation may be found at

http://www.dpdk.org/doc/guides/sample_app_ug/l3_forward.html.

The application demonstrates the use of the hash and LPM libraries in the DPDK to

implement packet forwarding. The lookup method is either hash-based or LPM-based and is

selected at compile time. In this test case, the selected lookup method is the default LPM-

based without modification, an LPM object is used to emulate the forwarding stage for IPv4

packets. The LPM object is used as the routing table to identify the next hop for each input

packet at runtime.

The LPM lookup key is represented by the Destination IP Address field read from the input

packet. The ID of the output interface for the input packet is the next hop returned by the

LPM lookup. The set of LPM rules used by the application is statically configured and loaded

into the LPM object at initialization time.

Other names and brands may be claimed as the property of others.

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