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Better Never than Late: Meeting Deadlines in Datacenter Networks
 

Summary: Better Never than Late: Meeting Deadlines in
Datacenter Networks
Christo Wilson Hitesh Ballani Thomas Karagiannis Ant Rowstron
christowilson@umail.ucsb.edu hiballan@microsoft.com thomkar@microsoft.com antr@microsoft.com
Microsoft Research
Cambridge, UK
ABSTRACT
The soft real-time nature of large scale web applications in
today's datacenters, combined with their distributed work-
flow, leads to deadlines being associated with the datacenter
application traffic. A network flow is useful, and contributes
to application throughput and operator revenue if, and only
if, it completes within its deadline. Today's transport pro-
tocols (TCP included), given their Internet origins, are ag-
nostic to such flow deadlines. Instead, they strive to share
network resources fairly. We show that this can hurt appli-
cation performance.
Motivated by these observations, and other (previously
known) deficiencies of TCP in the datacenter environment,
this paper presents the design and implementation of D3

  

Source: Almeroth, Kevin C. - Department of Computer Science, University of California at Santa Barbara

 

Collections: Computer Technologies and Information Sciences