2018/09/25 by Hamidrezae Almasi, Hamed Rezaei, Almasi, Hamidrezae +5 · 1 citation
Computer Science · #Cloud Computing and Resource Management #FOS: Computer and information sciences #Networking and Internet Architecture (cs.NI) #Peer-to-Peer Network Technologies #Software-Defined Networks and 5G
paper · pdf · doi:10.48550/arxiv.1809.09751
openalex publication_date 2018/09/25 · openalex created_date 2022/08/03 · openalex updated_date 2026/07/28
Datacenter applications frequently cause incast congestion, which degrades\nboth flow completion times of short flows and throughput of long flows. Without\nisolating incast, existing congestion control schemes (e.g., DCTCP) rely on\nexisting ECN signal to react to general congestion, and they lose performance\ndue to their slow, cautious, and inaccurate reaction to incast. We propose to\nisolate incast using Explicit Incast Notifications (EIN) that are generated by\nswitches, similar to ECN. Our incast detection is fast and accurate. Further,\nwe present our congestion control scheme, called Pulser, which drastically\nbacks off during incast based on EIN, but restores sending rate once incast\nends. Our real experiments and ns-3 simulations show that Pulser outperforms\nprior schemes, DCTCP and ICTCP, in both flow completion times and throughput.\n