ILLIXR: An Open Testbed to Enable Extended Reality Systems Research

Muhammad Huzaifa, Rishi Desai, Samuel Grayson, Xutao Jiang, Ying Jing, Jae Lee, Fang Lu, Yihan Pang, Joseph Ravichandran, Finn Sinclair, Boyuan Tian, Hengzhi Yuan, Jeffrey Zhang, Sarita V. Adve

Research output: Contribution to journalArticlepeer-review


We present Illinois Extended Reality testbed (ILLIXR), the first fully open-source XR system and research testbed. ILLIXR enables system innovations with end-to-end co-designed hardware, compiler, OS, and algorithms, and driven by end-user perceived Quality-of-Experience (QoE) metrics. Using ILLIXR, we provide the first comprehensive quantitative analysis of performance, power, and QoE for a complete XR system and its individual components. We describe several implications of our results that propel new directions in architecture, systems, and algorithms research for domain-specific systems in general, and XR in particular.

Original languageEnglish (US)
Pages (from-to)97-106
Number of pages10
JournalIEEE Micro
Issue number4
StatePublished - 2022

ASJC Scopus subject areas

  • Software
  • Hardware and Architecture
  • Electrical and Electronic Engineering


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