PB-FS: Postcard-Based Fast Start

Dan Aaronson, Reuven Cohen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We propose PB-FS (Postcard-Based Fast Start), a rate initialization scheme that uses direct feedback from the switches to quickly correct the rates of new datacenter flows that begin at the line rate and cause congestion. PB-FS is designed to easily integrate into any datacenter congestion control protocol. We evaluate PB-FS in two datacenter environments: a lossless network that runs RoCE, and a lossy network that uses RDMA with selective repeat. We show that PB-FS significantly reduces tail latency of short flows while maintaining throughput, in both lossless and lossy datacenters.

Original languageEnglish
Title of host publication2024 IFIP Networking Conference, IFIP Networking 2024
Pages86-94
Number of pages9
ISBN (Electronic)9783903176638
DOIs
StatePublished - 2024
Event23rd International Federation for Information Processing on Networking Conference, IFIP Networking 2024 - Thessaloniki, Greece
Duration: 3 Jun 20246 Jun 2024

Publication series

Name2024 IFIP Networking Conference, IFIP Networking 2024

Conference

Conference23rd International Federation for Information Processing on Networking Conference, IFIP Networking 2024
Country/TerritoryGreece
CityThessaloniki
Period3/06/246/06/24

Keywords

  • congestion control
  • datacenter
  • RDMA

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality
  • Computer Networks and Communications
  • Hardware and Architecture
  • Information Systems and Management

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