Thats a unique idea.You should consider the following idea to enhance your idea so that it would impact uniquely: Virtual machines (VMs) are widely adopted today to provide elastic computing services in datacenters, and they still heavily rely on TCP for congestion control. VM scheduling delays due to CPU sharing can cause frequent spurious retransmit timeouts (RTOs). Using current detection methods,  find that such spurious RTOs cannot be effectively identified because of the retransmission ambiguity caused by the delayed ACK (DelACK) mechanism. Disabling DelACK would add significant CPU overhead to the VMs and thus degrade the network’s performance. ,  first report our practical experience about TCP’s reaction to VM scheduling delays.  then provide an analysis of the problem that has two components corresponding to VM preemption on the sender side and the receiver side, respectively. Finally,  propose PVTCP, a ParaVirtualized approach to counteract the distortion of congestion information caused by the hypervisor scheduler. PVTCP is completely embedded in the guest OS and requires no modification in the hypervisor. Taking incast congestion as an example,  evaluate our solution in a 21-node testbed. The results show that PVTCP has high adaptability in virtualized environments and deals satisfactorily with the throughput collapse problem.
['Luwei Cheng', 'Francis C. M. Lau']
I am writing a research paper on a idea Revisiting TCP Congestion Control in a Virtual Cluster Environment
[{"from": "human", "value": "I am writing a research paper on a idea Revisiting TCP Congestion Control in a Virtual Cluster Environment"}, {"from": "gpt", "value": "Thats a unique idea.You should consider the following idea to enhance your idea so that it would impact uniquely: Virtual machines (VMs) are widely adopted today to provide elastic computing services in datacenters, and they still heavily rely on TCP for congestion control. VM scheduling delays due to CPU sharing can cause frequent spurious retransmit timeouts (RTOs). Using current detection methods,  find that such spurious RTOs cannot be effectively identified because of the retransmission ambiguity caused by the delayed ACK (DelACK) mechanism. Disabling DelACK would add significant CPU overhead to the VMs and thus degrade the network\u2019s performance. ,  first report our practical experience about TCP\u2019s reaction to VM scheduling delays.  then provide an analysis of the problem that has two components corresponding to VM preemption on the sender side and the receiver side, respectively. Finally,  propose PVTCP, a ParaVirtualized approach to counteract the distortion of congestion information caused by the hypervisor scheduler. PVTCP is completely embedded in the guest OS and requires no modification in the hypervisor. Taking incast congestion as an example,  evaluate our solution in a 21-node testbed. The results show that PVTCP has high adaptability in virtualized environments and deals satisfactorily with the throughput collapse problem."}]