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Conference Paper: PVTCP: Towards practical and effective congestion control in virtualized datacenters

TitlePVTCP: Towards practical and effective congestion control in virtualized datacenters
Authors
Issue Date2013
PublisherInstitute of Electrical and Electronics Engineers. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/conhome.jsp?punumber=1000492
Citation
The 21st IEEE International Conference on Network Protocols (ICNP 2013), Göttingen, Germany, 7-10 October 2013. In International Conference on Network Protocols Proceedings, 2013, p. 1-10 How to Cite?
AbstractWhile modern datacenters are increasingly adopting virtual machines (VMs) to provide elastic cloud services, they still rely on traditional TCP for congestion control. In virtualized datacenters, TCP endpoints are separated by a virtualization layer and subject to the intervention of the hypervisor’s scheduling. Most previous attempts focused on tuning the hypervisor layer to try to improve the VMs’ I/O performance, and there is very little work on how a VM’s guest OS may help the transport layer to adapt to the virtualized environment. In this paper, we find that VM scheduling delays can heavily contaminate RTTs as sensed by VM senders, preventing TCP from correctly learning the physical network condition. After giving an account of the source of the problem, we propose PVTCP, a ParaVirtualized TCP to counter the distorted congestion information caused by VM scheduling on the sender side. PVTCP is self-contained, requiring no modification to the hypervisor. Experiments show that PVTCP is much more effective in addressing incast congestion in virtualized datacenters than standard TCP.
Persistent Identifierhttp://hdl.handle.net/10722/191544
ISBN
ISSN

 

DC FieldValueLanguage
dc.contributor.authorCheng, Len_US
dc.contributor.authorWang, CLen_US
dc.contributor.authorLau, FCMen_US
dc.date.accessioned2013-10-15T07:10:14Z-
dc.date.available2013-10-15T07:10:14Z-
dc.date.issued2013en_US
dc.identifier.citationThe 21st IEEE International Conference on Network Protocols (ICNP 2013), Göttingen, Germany, 7-10 October 2013. In International Conference on Network Protocols Proceedings, 2013, p. 1-10en_US
dc.identifier.isbn978-1-4799-1270-4-
dc.identifier.issn1092-1648-
dc.identifier.urihttp://hdl.handle.net/10722/191544-
dc.description.abstractWhile modern datacenters are increasingly adopting virtual machines (VMs) to provide elastic cloud services, they still rely on traditional TCP for congestion control. In virtualized datacenters, TCP endpoints are separated by a virtualization layer and subject to the intervention of the hypervisor’s scheduling. Most previous attempts focused on tuning the hypervisor layer to try to improve the VMs’ I/O performance, and there is very little work on how a VM’s guest OS may help the transport layer to adapt to the virtualized environment. In this paper, we find that VM scheduling delays can heavily contaminate RTTs as sensed by VM senders, preventing TCP from correctly learning the physical network condition. After giving an account of the source of the problem, we propose PVTCP, a ParaVirtualized TCP to counter the distorted congestion information caused by VM scheduling on the sender side. PVTCP is self-contained, requiring no modification to the hypervisor. Experiments show that PVTCP is much more effective in addressing incast congestion in virtualized datacenters than standard TCP.-
dc.languageengen_US
dc.publisherInstitute of Electrical and Electronics Engineers. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/conhome.jsp?punumber=1000492-
dc.relation.ispartofInternational Conference on Network Protocols Proceedingsen_US
dc.rightsInternational Conference on Network Protocols. Proceedings. Copyright © Institute of Electrical and Electronics Engineers.-
dc.rights©2013 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.titlePVTCP: Towards practical and effective congestion control in virtualized datacentersen_US
dc.typeConference_Paperen_US
dc.identifier.emailCheng, L: lwcheng@cs.hku.hken_US
dc.identifier.emailWang, CL: clwang@cs.hku.hken_US
dc.identifier.emailLau, FCM: fcmlau@cs.hku.hk-
dc.identifier.authorityWang, CL=rp00183en_US
dc.identifier.authorityLau, FCM=rp00221en_US
dc.description.naturepublished_or_final_version-
dc.identifier.hkuros225317en_US
dc.identifier.spage1-
dc.identifier.epage10-
dc.publisher.placeUnited States-
dc.customcontrol.immutablesml 131105-

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