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A QoE perspective on sizing network buffers
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Hohlfeld, Oliver, Pujol, Enric, Ciucu, Florin, Feldmann, Anja and Barford, Paul (2014) A QoE perspective on sizing network buffers. In: 2014 Conference on Internet Measurement Conference, Vancouver, BC, Canada, 5-7 Nov 2014. Published in: Proceedings of the 2014 Conference on Internet Measurement Conference pp. 333-346. ISBN 9781450332132. doi:10.1145/2663716.2663730
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Official URL: http://dx.doi.org/10.1145/2663716.2663730
Abstract
Despite decades of operational experience and focused research efforts, standards for sizing and configuring buffers in network systems remain controversial. An extreme example of this is the recent claim that excessive buffering (i.e., bufferbloat) can severely impact Internet services. In this paper, we systematically examine the implications of buffer sizing choices from the perspective of factors impacting end user experience. To assess user perception of application quality under various buffer sizing schemes we employ Quality of Experience (QoE) metrics. We evaluate these metrics over a wide range of end-user applications (e.g., web browsing, VoIP, and RTP video streaming) and workloads in two realistic testbeds emulating access and backbone networks. The main finding of our extensive evaluations is that network workload, rather than buffer size, is the primary determinant of end user QoE. Our results also highlight the relatively narrow conditions under which bufferbloat seriously degrades QoE, i.e., when buffers are oversized and sustainably filled.
Item Type: | Conference Item (Paper) | ||||
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Subjects: | Q Science > QA Mathematics > QA76 Electronic computers. Computer science. Computer software T Technology > TK Electrical engineering. Electronics Nuclear engineering |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Computer Science | ||||
Library of Congress Subject Headings (LCSH): | Routers (Computer networks), Buffer storage (Computer science), Quality of service (Computer networks), Human-computer interaction, User interfaces (Computer systems) | ||||
Journal or Publication Title: | Proceedings of the 2014 Conference on Internet Measurement Conference | ||||
Publisher: | ACM | ||||
ISBN: | 9781450332132 | ||||
Book Title: | Proceedings of the 2014 Conference on Internet Measurement Conference - IMC '14 | ||||
Official Date: | 5 November 2014 | ||||
Dates: |
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Page Range: | pp. 333-346 | ||||
DOI: | 10.1145/2663716.2663730 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Date of first compliant deposit: | 4 April 2016 | ||||
Date of first compliant Open Access: | 4 April 2016 | ||||
Embodied As: | 1 | ||||
Conference Paper Type: | Paper | ||||
Title of Event: | 2014 Conference on Internet Measurement Conference | ||||
Type of Event: | Conference | ||||
Location of Event: | Vancouver, BC, Canada | ||||
Date(s) of Event: | 5-7 Nov 2014 | ||||
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