PCC: Re-architecting congestion control for consistent high performance

Mo Dong, Qingxi Li, Doron Zarchy, P. Brighten Godfrey, Michael Schapira

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

TCP and its variants have suffered from surprisingly poor performance for decades. We argue the TCP family has little hope of achieving consistent high performance due to a fundamental architectural deficiency: hardwiring packet-level events to control responses. We propose Performance-oriented Congestion Control (PCC), a new congestion control architecture in which each sender continuously observes the connection between its actions and empirically experienced performance, enabling it to consistently adopt actions that result in high performance. We prove that PCC converges to a stable and fair equilibrium. Across many real-world and challenging environments, PCC shows consistent and often 10× performance improvement, with better fairness and stability than TCP. PCC requires no router hardware support or new packet format.

Original languageEnglish (US)
Title of host publicationProceedings of the 12th USENIX Symposium on Networked Systems Design and Implementation, NSDI 2015
PublisherUSENIX
Pages395-408
Number of pages14
ISBN (Electronic)9781931971218
StatePublished - Jan 1 2015
Event12th USENIX Symposium on Networked Systems Design and Implementation, NSDI 2015 - Oakland, United States
Duration: May 4 2015May 6 2015

Publication series

NameProceedings of the 12th USENIX Symposium on Networked Systems Design and Implementation, NSDI 2015

Other

Other12th USENIX Symposium on Networked Systems Design and Implementation, NSDI 2015
CountryUnited States
CityOakland
Period5/4/155/6/15

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Computer Networks and Communications

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  • Cite this

    Dong, M., Li, Q., Zarchy, D., Godfrey, P. B., & Schapira, M. (2015). PCC: Re-architecting congestion control for consistent high performance. In Proceedings of the 12th USENIX Symposium on Networked Systems Design and Implementation, NSDI 2015 (pp. 395-408). (Proceedings of the 12th USENIX Symposium on Networked Systems Design and Implementation, NSDI 2015). USENIX.