Efficient continuous latency monitoring with eBPF

Sundberg, Simon; Brunström, Anna; Ferlin, Simone; Høiland-Jørgensen, Toke; Brouer, Jesper Dangaard

doi:10.5281/zenodo.7555410

Cited by 1 publication

(1 citation statement)

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“…Therefore, by moving most of the logic to kernel space and thereby avoiding the costly packet capturing and related copying of packets, ePPing is able to operate with lower overhead, significantly outperforming PPing at high packet rates. ePPing is available as open source [27], and the exact build used in this work together with the experiment scripts and measurement data is archived at [26].…”

Section: Design and Implementationmentioning

confidence: 99%

Sundberg

Brunström

Ferlin

et al. 2023

Lecture Notes in Computer Science

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Network latency is a critical factor for the perceived quality of experience for many applications. With an increasing focus on interactive and real-time applications, which require reliable and low latency, the ability to continuously and efficiently monitor latency is becoming more important than ever. Always-on passive monitoring of latency can provide continuous latency metrics without injecting any traffic into the network. However, software-based monitoring tools often struggle to keep up with traffic as packet rates increase, especially on contemporary multi-Gbps interfaces. We investigate the feasibility of using eBPF to enable efficient passive network latency monitoring by implementing an evolved Passive Ping (ePPing). Our evaluation shows that ePPing delivers accurate RTT measurements and can handle over 1 Mpps, or correspondingly over 10 Gbps, on a single core, greatly improving on state-of-the-art software based solutions, such as PPing.

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Section: Design and Implementationmentioning

confidence: 99%