HyperTRIO: Hyper-Tenant Translation of I/O Addresses

Alexey Lavrov, David Wentzlaff

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations


Hardware resource sharing has proven to be an efficient way to increase resource utilization, save energy, and decrease operational cost. Modern-day servers accommodate hundreds of Virtual Machines (VMs) running concurrently, and lightweight software abstractions like containers enable the consolidation of an even larger number of independent tenants per server. The increasing number of hardware accelerators along with growing interconnection bandwidth creates a new class of devices available for sharing. To fully utilize the potential of these devices, I/O architecture needs to be carefully designed for both processors and devices. This paper presents the design and analysis of scalable Hypertenant TRanslation of I/O addresses (HyperTRIO) for shared devices. HyperTRIO provides isolation and performance guarantees at low hardware cost by supporting multiple in-flight address translations, partitioning translation caches, and utilizing both inter- and intra-tenant access patterns for translation prefetching. This work also constructs a Hyper-tenant Simulator of I/O address accesses (HyperSIO) for 1000-tenant systems which we open-sourced. This work characterizes tenant access patterns and uses these insights to address identified challenges. Overall, the HyperTRIO design enables the system to utilize full available I/O bandwidth in a hyper-tenant environment.

Original languageEnglish (US)
Title of host publicationProceedings - 2020 ACM/IEEE 47th Annual International Symposium on Computer Architecture, ISCA 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages14
ISBN (Electronic)9781728146614
StatePublished - May 2020
Event47th ACM/IEEE Annual International Symposium on Computer Architecture, ISCA 2020 - Virtual, Online, Spain
Duration: May 30 2020Jun 3 2020

Publication series

NameProceedings - International Symposium on Computer Architecture
ISSN (Print)1063-6897


Conference47th ACM/IEEE Annual International Symposium on Computer Architecture, ISCA 2020
CityVirtual, Online

All Science Journal Classification (ASJC) codes

  • Hardware and Architecture


  • I/O subsystem
  • address translation
  • virtualization


Dive into the research topics of 'HyperTRIO: Hyper-Tenant Translation of I/O Addresses'. Together they form a unique fingerprint.

Cite this