Pktgen: Measuring performance on high speed networks

Turull, Daniel; Sjödin, Peter; Olsson, Robin

doi:10.1016/j.comcom.2016.03.003

Cited by 24 publications

(6 citation statements)

References 6 publications

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“…Understanding how well a SmartNIC can perform computations under duress is essential for determining what work can be offloaded to the network. To answer the first question, we use Linux's pktgen [9], [10] traffic generation tool to determine how much delay between packet transmissions can be tolerated before network throughput drops. This delay gives an estimate of how much free time a processor has for performing offloaded computations.…”

Section: Smartnic Research Directionmentioning

confidence: 99%

Performance Characteristics of the BlueField-2 SmartNIC

Jian-shen¹,

Maltzahn²,

Ulmer³

et al. 2021

Preprint

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High-performance computing (HPC) researchers have long envisioned scenarios where application workflows could be improved through the use of programmable processing elements embedded in the network fabric. Recently, vendors have introduced programmable Smart Network Interface Cards (SmartNICs) that enable computations to be offloaded to the edge of the network. There is great interest in both the HPC and high-performance data analytics (HPDA) communities in understanding the roles these devices may play in the data paths of upcoming systems.This paper focuses on characterizing both the networking and computing aspects of NVIDIA's new BlueField-2 SmartNIC when used in a 100Gb/s Ethernet environment. For the networking evaluation we conducted multiple transfer experiments between processors located at the host, the SmartNIC, and a remote host. These tests illuminate how much effort is required to saturate the network and help estimate the processing headroom available on the SmartNIC during transfers. For the computing evaluation we used the stress-ng benchmark to compare the BlueField-2 to other servers and place realistic bounds on the types of offload operations that are appropriate for the hardware.Our findings from this work indicate that while the BlueField-2 provides a flexible means of processing data at the network's edge, great care must be taken to not overwhelm the hardware. While the host can easily saturate the network link, the SmartNIC's embedded processors may not have enough computing resources to sustain more than half the expected bandwidth when using kernel-space packet processing. From a computational perspective, encryption operations, memory operations under contention, and on-card IPC operations on the SmartNIC perform significantly better than the general-purpose servers used for comparisons in our experiments. Therefore, applications that mainly focus on these operations may be good candidates for offloading to the SmartNIC.

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Section: Smartnic Research Directionmentioning

confidence: 99%

Performance Characteristics of the BlueField-2 SmartNIC

Jian-shen¹,

Maltzahn²,

Ulmer³

et al. 2021

Preprint

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“…The servers run Ubuntu 14.04 with kernel 4.4 and are connected to 10 and 40 Gbps top-of-rack switches. We use MoonGen [17] and pktgen [55] to generate traffic and measure latency and throughput, respectively. Traffic from the generator server, passed in the 40 Gbps links, is sent through middleboxes and back to the generator.…”

Section: Experimental Setup and Methodologymentioning

confidence: 99%

Fault Tolerance for Service Function Chains

Ghaznavi,

Jalalpour,

Wong

et al. 2020

Preprint

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Enterprise network traffic typically traverses a sequence of middleboxes forming a service function chain, or simply a chain. Tolerating failures when they occur along chains is imperative to the availability and reliability of enterprise applications. Making a chain fault-tolerant is challenging since, in the event of failures, the state of faulty middleboxes must be correctly and quickly recovered while providing high throughput and low latency.In this paper, we introduce FTC, a system design and protocol for fault-tolerant service function chaining. FTC provides strong consistency with up to f middlebox failures for chains of length f + 1 or longer without requiring dedicated replica nodes. In FTC, state updates caused by packet processing at a middlebox are collected, piggybacked onto the packet, and sent along the chain to be replicated. Our evaluation shows that compared with the state of art [49], FTC improves throughput by 2-3.5× for a chain of two to five middleboxes.

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“…A topologia dos experimentos (figura 3) foi composta por dois computadores (computador A e B). O computador A contém a SmartNIC Intel X710 DA-2 que executa o gerador de tráfego (pktgen-DPDK) [Turull et al 2016], para produzir o fluxo de pacotes que alimenta o sistema. O gerador de tráfego envia pacotes com tamanhos que variam entre 64 e 1500 bytes em taxa de linha de 10 Gbps.…”

Section: Topologia Experimentosunclassified

Sistema de Detecção de Intrusão Serverless em uma SmartNIC

Duarte¹,

Pacífico²,

Vieira³

et al. 2021

Anais Do XXXIX Simpósio Brasileiro De Redes De Computadores E Sistemas Distribuídos (SBRC 2021)

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Segurança de dados tornou-se um fator crucial no contexto de redes de computadores. Entre 2015 e 2020, estima-se que o prejuízo causado pelo roubo de informações na Internet seja de R$ 26 trilhões. Nesse cenário, Sistemas de Detecção de Intrusão (SDIs) são elementos essenciais na busca de ameaças. Contudo, SDIs são instalados em máquinas convencionais com pouco poder de processamento e altos custos operacionais. Ofﬂoading de funções de rede em SmartNICs e o paradigma Serverless surgem como soluções eﬁcientes, pois combinam ﬂexibilidade e programabilidade com poder de processamento de pacotes em hardware. Nesse trabalho propomos um SDI Serverless com ofﬂoading de ﬁltros deﬁnidos pelo usuário na SmartNIC Netronome. Foram criados diferentes ﬁltros usando a tecnologia eBPF para validar o sistema. Os resultados obtidos mostram que ataques são detectados em taxa de linha.

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Pktgen: Measuring performance on high speed networks

Cited by 24 publications

References 6 publications

Performance Characteristics of the BlueField-2 SmartNIC

Performance Characteristics of the BlueField-2 SmartNIC

Fault Tolerance for Service Function Chains

Sistema de Detecção de Intrusão Serverless em uma SmartNIC

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