Kenta Ishiguro

I am a Research Scientist (Chargé de Recherche) at the Inria Grenoble Center, France, and a member of the KrakOS team. Prior to my current position, I was a postdoctoral researcher in KrakOS, working with Alain Tchana and Renaud Lachaize. Before joining KrakOS, I was a project assistant professor at Keio University working with Kenji Kono, and an associate faculty member at Hosei University working with Toshio Hirotsu. I received my Ph.D. from Keio University, Japan, under the supervision of Prof. Kenji Kono.

Publications

• Interrupt-Free I/O Event Handling
  Yuki Tsujimoto, Kenichi Yasukata, Kenta Ishiguro, Kenji Kono
  In ACM Symposium on Cloud Computing 2026 (SoCC '26), Nov. 2026
  [paper], [bibtex]
  
  
• Everything You Need to Know About Virtual Machine Live Migration Between Heterogeneous Processors
  Kenta Ishiguro, Caleb Fonyuy-Asheri, Elouan Barraud, Renaud Lachaize, Yérom-David Bromberg, and Alain Tchana
  In Proceedings of the 21st European Conference on Computer Systems (EuroSys '26), Apr. 2026
  [paper], [bibtex]
  
  
• Nesting Overlay File Systems with ShadowWhiteout
  Kenta Ishiguro, Kohei Hayama, Ayase Yokoyama, Hiroshi Yamada, and Toshio Hirotsu
  In Proceedings of the 16th ACM SIGOPS Asia-Pacific Workshop on Systems (APSys '25), Oct. 2025
  [paper], [bibtex], [artifact]
  
  
• PvCC: A vCPU Scheduling Policy for DPDK-applied Systems at Multi-Tenant Edge Data Centers
  Yuki Tsujimoto, Yuki Sato, Kenichi Yasukata, Kenta Ishiguro, and Kenji Kono
  In Proceedings of the 24th International Middleware Conference (Middleware '24), Dec. 2024
  [paper], [bibtex], [artifact]
  
  
• Developing Process Scheduling Policies in User Space with Common OS Features
  Kenichi Yasukata and Kenta Ishiguro
  In Proceedings of the 15th ACM SIGOPS Asia-Pacific Workshop on Systems (APSys '24), Sep. 2024
  [paper], [bibtex], [artifact]
  
  
• Balancing Analysis Time and Bug Detection: Daily Development-friendly Bug Detection in Linux
  Keita Suzuki, Kenta Ishiguro, and Kenji Kono
  In Proceedings of 2024 USENIX Annual Technical Conference (USENIX ATC '24), Jul. 2024
  [paper], [bibtex], [artifact]
  
  
• Revisiting VM-Agnostic KVM vCPU Scheduler for Mitigating Excessive vCPU Spinning
  Kenta Ishiguro, Naoki Yasuno, Pierre-Louis Aublin, and Kenji Kono
  In IEEE Transactions on Parallel and Distributed Systems, vol. 34, no. 10, pp. 2615-2628, Oct. 2023
  [paper], [bibtex], [source code]
  
  
• zpoline: a system call hook mechanism based on binary rewriting
  Kenichi Yasukata, Hajime Tazaki, Pierre-Louis Aublin, and Kenta Ishiguro
  In Proceedings of 2023 USENIX Annual Technical Conference (USENIX ATC '23), Jul. 2023
  Best paper!
  [paper], [bibtex], [zpoline source code]
  
  
• Nioh-PT: Virtual I/O Filtering for Agile Protection against Vulnerability Windows
  Mana Senuki, Kenta Ishiguro, and Kenji Kono
  In Proceedings of the 38th ACM/SIGAPP Symposium on Applied Computing (SAC '23), Mar. 2023
  [paper], [bibtex]
  
  
• Mitigating Excessive vCPU Spinning in VM-Agnostic KVM
  Kenta Ishiguro, Naoki Yasuno, Pierre-Louis Aublin, and Kenji Kono
  In Proceedings of the 17th ACM SIGPLAN/SIGOPS International Conference on Virtual Execution Environments (VEE '21), Apr. 2021
  [paper], [bibtex], [source code]
  
  
• Instruction Filters for Mitigating Attacks on Instruction Emulation in Hypervisors
  Kenta Ishiguro and Kenji Kono
  In IEICE Transactions on Information and Systems Vol.E103-D No.7, Jul. 2020
  [paper]
  
  
• Hardening Hypervisors against Vulnerabilities in Instruction Emulators
  Kenta Ishiguro and Kenji Kono
  In Proceedings of the 11th European Workshop on Systems Security (EuroSec '18), Apr. 2018
  [paper], [bibtex], [FWinst source code]

Poster

• Retrofitting VMM Optimizations to Confidential VMs
  Yuma Okamura, Kenta Ishiguro, Terufumi Hata, and Kenji Kono
  USENIX OSDI 2025
  [abstract]
  
  
• We Need Volunteer Spirit! for Speeding Up Consolidated DPDK Applications
  Yuki Tsujimoto, Kenta Ishiguro, Kenichi Yasukata, and Kenji Kono
  EuroSys 2024
  [abstract]
  
  
• Toward Accurate Group Scheduling in Multi-core Environments
  Kenta Ishiguro, Kenichi Yasukata, Toshio Hirotsu
  USENIX OSDI 2023
  [abstract], [poster]
  

Talk

• Hypervisor-centric or Toolstack-centric? Migration Validation for Semi-Heterogeneous Environments
  Xen Spring Meetup 2026
  [Xen Spring Meetup]
  
  
• Mitigating Excessive Pause-Loop-Exiting in VM-Agnostic KVM
  KVM Forum 2021
  [KVM Forum]
  
  
• Eurosys Doctoral Workshop 2021
  

Service

• External reviewer, SIGMETRICS 2026
• SOSP Artifact Evaluation Committee member 2025
• EuroSys Artifact Evaluation Committee member 2022
• SOSP Artifact Evaluation Committee member 2021
• EuroSys shadow PC 2021

Contact

• kentaishiguro@slowstart.org