TY  - RPRT
A1  - Grigorjew, Alexej
A1  - Schumann, Lukas Kilian
A1  - Diederich, Philip
A1  - Hoßfeld, Tobias
A1  - Kellerer, Wolfgang
T1  - Understanding the Performance of Different Packet Reception and Timestamping Methods in Linux
T2  - KuVS Fachgespräch - Würzburg Workshop on Modeling, Analysis and Simulation of Next-Generation Communication Networks 2023 (WueWoWAS’23)
N2  - This document briefly presents some renowned packet reception techniques for network packets in Linux systems. Further, it compares their performance when measuring packet timestamps with respect to throughput and accuracy. Both software and hardware timestamps are compared, and various parameters are examined, including frame size, link speed, network interface card, and CPU load. The results indicate that hardware timestamping offers significantly better accuracy with no downsides, and that packet reception techniques that avoid system calls offer superior measurement throughput.
KW  - packet reception method
KW  - timestamping method
KW  - Linux
Y1  - 2023
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-322064
ER  - 
TY  - RPRT
A1  - Grigorjew, Alexej
A1  - Diederich, Philip
A1  - Hoßfeld, Tobias
A1  - Kellerer, Wolfgang
T1  - Affordable Measurement Setups for Networking Device Latency with Sub-Microsecond Accuracy
T2  - Würzburg Workshop on Next-Generation Communication Networks (WueWoWas'22)
N2  - This document presents a networking latency measurement setup that focuses on affordability and universal applicability, and can provide sub-microsecond accuracy. It explains the prerequisites, hardware choices, and considerations to respect during measurement. In addition, it discusses the necessity for exhaustive latency measurements when dealing with high availability and low latency requirements. Preliminary results show that the accuracy is within ±0.02 μs when used with the Intel I350-T2 network adapter.
KW  - Datennetz
KW  - latency
Y1  - 2022
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-280751
ER  -