Predictable Data Centers (PDC)

Performance predictability is a key requirement for high-performant applications in today's multi-tenant data centers. Online services running in infrastructure data centers need such predictability to satisfy application SLAs. Cloud data centers require guaranteed performance to bound customer costs and spur adoption. However, several components of today’s datacenters are at odds with such high-level application SLAs.

The Predictable Data Centers (PDC) project tackles the issue of unpredictable application performance in data centers. A key contributor to such unpredictability is shared resources like network and storage. The bandwidth across the cloud network and to the cloud storage service can vary significantly. To address this, we are designing a predictable data center architecture that offers performance SLAs across shared resources. Efforts like Oktopus, D3 and Hadrian enable a predictable network. More recently, we have been working on predictable storage. We have designed IOFlow, a software-defined storage architecture that enables performance SLAs across shared storage.

Projects

IOFlow 

IOFlow

Software-defined storage 

Hadrian 

Hadrian

Network Sharing in Multi-tenant Data Centers

Bazaar 

Bazaar

Bridging the Tenant-Provider Gap in Cloud Services

Oktopus

Oktopus

Towards Predictable Datacenter Networks

D3 

D3

Meeting Deadlines in Data Center Networks

Publications
People
Hitesh Ballani
Hitesh Ballani

Richard Black
Richard Black

Paolo Costa
Paolo Costa

Fahad Dogar
Fahad Dogar

Thomas Karagiannis
Thomas Karagiannis

Greg O'Shea
Greg O'Shea

Ant Rowstron
Ant Rowstron

Eno Thereska
Eno Thereska

External Collaborators
  •  Virajith Jalaparti (UIUC)
  • Changhoon Kim (MS Azure)
  • Christo Wilson (Northeastern University)