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Title

Accuracy evaluation of application-level performance measurements

Authors
Arlos, Patrik
Fiedler, Markus
Chevul, Stefan
Isaksson, Lennart
Published in IEEE Comunications Society. Proceedings of the 3rd EURO-NGI Conference on Next Generation Internet Networks Design and Engineering for Heterogeneity - NGI07. Trondheim (Norway) - 21-23 May 2007 - Piscataway: IEEE Conference publications. 2007, p. 1-5
Collection IEEE Catalog Number; 9693456
Abstract In many cases, application-level measurements can be the only way for an application to evaluate and adapt to the performance offered by the underlying networks. Applications perceive heterogeneous networking environments spanning over multiple administrative domains as "black boxes" being inaccessible for lower-level measurement instrumentation. However, application-level measurements can be inaccurate and differ significantly from the lower-level ones, amongst others due to the influence of the protocol stacks. In this paper we quantify and discuss such differences using the Distributed Passive Measurement Infrastructure (DPMI), with Measurement Points (MPs) instrumented with DAG 3.5E cards for the reference link-level measurements. We shed light on various impacts on timestamp accuracy of application-level measurements. Moreover, we quantify the accuracy of generating traffic with constant inter-packet-times (IPTs). The latter is essential for an accurate emulation of application-level streaming traffic and thus for obtaining realistic end-to-end performance measurements.
Keywords Computer networksPerformance evaluationTelecommunication computingTelecommunication traffic
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ISBN: 978-1-4244-0857-1
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WAC, Katarzyna et al. Accuracy evaluation of application-level performance measurements. In: IEEE Comunications Society (Ed.). Proceedings of the 3rd EURO-NGI Conference on Next Generation Internet Networks Design and Engineering for Heterogeneity - NGI07. Trondheim (Norway). Piscataway : IEEE Conference publications, 2007. p. 1-5. (IEEE Catalog Number; 9693456) https://archive-ouverte.unige.ch/unige:55861

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Deposited on : 2015-04-28

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