A study of networking software induced latency
A study of networking software induced latency
复制标题
网络软件引起的延迟的研究
DOI：
10.1109/netsys.2015.7089065
复制
发表时间：
2015
期刊：
影响因子：
--
通讯作者：
G. Carle
中科院分区：
文献类型：
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作者：
Alexander Beifuß;Daniel Raumer;Paul Emmerich;Torsten M. Runge;F. Wohlfart;B. Wolfinger;G. Carle
长期以来，由于基于软件的解决方案无法实现所需的性能，高速数据包处理一直是专用硬件设备的专利。然而，现成的包处理硬件和软件在过去几年中得到了改进，这就是为什么基于软件的解决方案能够应对当今的高速流量。由于软件的灵活性，有一种趋势是在软件中进行数据包处理，例如使用OpenFlow或虚拟交换机。尽管软件中的数据包处理提供了许多功能，但此类软件基础解决方案的复杂性使得很难评估、优化或预测服务器、最终用户主机或路由器的网络性能。我们提出了一项研究，调查了在Linux网络堆栈中由数据包处理引起的数据包延迟。我们在ns-3中开发了一个模拟模型，用于通过Linux网络堆栈进行数据包处理，这有助于理解其性能影响。我们基于纳秒精度的测量和软件分析验证了我们的仿真模型。
For long time, high-speed packet processing has been reserved for specialized hardware devices since software based solutions were not able to achieve the required performance. However, off-the-shelf packet processing hardware and software improved over the last years, which is why software based solutions cope with high-speed traffic nowadays. Due to the flexibility of software there is a trend towards doing packet processing in software, e.g. using OpenFlow or virtual switches. Although packet processing in software offers many capabilities, the complexity of such software bases solutions makes it hard to evaluate, optimize, or predict the networking performance of servers, end user hosts, or routers. We present a study that investigates the packet latency caused by the packet processing in the Linux network stack. We develop a simulation model in ns-3 for packet processing via the Linux network stack that helps understanding of its performance implications. We validate our simulation model based on measurements with nanosecond accuracy and software profiling.
DOI：
10.1109/cloudnet.2014.6968979
发表时间：
2014-12
期刊：
2014 IEEE 3rd International Conference on Cloud Networking (CloudNet)
影响因子：
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作者：
Paul Emmerich;Daniel Raumer;F. Wohlfart;G. Carle
通讯作者：
Paul Emmerich;Daniel Raumer;F. Wohlfart;G. Carle
经验证的基于模型的多核软件路由器性能预测
DOI：
10.1515/pik-2014-0006
发表时间：
2014
期刊：
PIK - Praxis der Informationsverarbeitung und Kommunikation
影响因子：
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作者：
Torsten Meyer;Florian Wohlfart;Daniel Raumer;Bernd E. Wolfinger;Georg Carle
通讯作者：
Georg Carle