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Conference Paper: PVTCP: Towards practical and effective congestion control in virtualized datacenters
Title | PVTCP: Towards practical and effective congestion control in virtualized datacenters |
---|---|
Authors | |
Issue Date | 2013 |
Publisher | Institute 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? |
Abstract | While 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 Identifier | http://hdl.handle.net/10722/191544 |
ISBN | |
ISSN | 2020 SCImago Journal Rankings: 0.339 |
DC Field | Value | Language |
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dc.contributor.author | Cheng, L | en_US |
dc.contributor.author | Wang, CL | en_US |
dc.contributor.author | Lau, FCM | en_US |
dc.date.accessioned | 2013-10-15T07:10:14Z | - |
dc.date.available | 2013-10-15T07:10:14Z | - |
dc.date.issued | 2013 | en_US |
dc.identifier.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 | en_US |
dc.identifier.isbn | 978-1-4799-1270-4 | - |
dc.identifier.issn | 1092-1648 | - |
dc.identifier.uri | http://hdl.handle.net/10722/191544 | - |
dc.description.abstract | While 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.language | eng | en_US |
dc.publisher | Institute of Electrical and Electronics Engineers. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/conhome.jsp?punumber=1000492 | - |
dc.relation.ispartof | International Conference on Network Protocols Proceedings | en_US |
dc.title | PVTCP: Towards practical and effective congestion control in virtualized datacenters | en_US |
dc.type | Conference_Paper | en_US |
dc.identifier.email | Cheng, L: lwcheng@cs.hku.hk | en_US |
dc.identifier.email | Wang, CL: clwang@cs.hku.hk | en_US |
dc.identifier.email | Lau, FCM: fcmlau@cs.hku.hk | - |
dc.identifier.authority | Wang, CL=rp00183 | en_US |
dc.identifier.authority | Lau, FCM=rp00221 | en_US |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1109/ICNP.2013.6733580 | - |
dc.identifier.scopus | eid_2-s2.0-84896770351 | - |
dc.identifier.hkuros | 225317 | en_US |
dc.identifier.spage | 1 | - |
dc.identifier.epage | 10 | - |
dc.publisher.place | United States | - |
dc.customcontrol.immutable | sml 131105 | - |
dc.identifier.issnl | 1092-1648 | - |