Current Projects

Energy-Aware Operating System for Disaggregated System

• 정보통신기획평가원 SW컴퓨팅산업원천기술개발사업 (funded by IITP, Jul. 2024 - Dec. 2027).

• Designing an energy-aware(efficient) remote storage system using NVMe-oF.

Development of 6G Framework Guaranteeing Application Performance

• 정보통신기획평가원 차세대네트워크(6G)산업기술개발사업 (funded by IITP, Apr. 2024 - Dec. 2028).

• Designing an end-host stack with 6G programmable interfaces for guaranteed performance.

Development of Networked Systems Technologies Leveraging SmartNIC

• 정보통신기획평가원 정보통신방송기술개발사업 (funded by IITP, Apr. 2024 - Dec. 2028).

• Designing and building SmartNIC-based high-performance network systems.

High-performance Software Stacks for Terabit Ethernet

• 한국연구재단 중견연구지원사업 (funded by NRF, Mar. 2022 - Feb. 2026).

• Designing and building new software stacks that achieve near-hardware performance with >=200Gbps links. 

• NetChannel: disaggregating the host network stack. [SIGCOMM'22] [github] [Netdev 0x16]

• Autothrottle: a new system framework for SLO-configured virtual machines and containers. [TCC]

Collaboration with Samsung

• Developing network stacks and algorithms for multipath transmissions (funded by Samsung, Mar. 2023 - Feb. 2026).

Past Projects

CPU-efficient Kernel Stacks for Emerging High-Performance Hardware

• i10: Desigining a new remote storage I/O stack. [NSDI'20] [github] [Netdev 0x14]

• blk-switch: Rearchitecting Linux storage I/O stack. [OSDI'21] [github]

• Understanding Linux network stack overheads. [SIGCOMM'21] [github] [Netdev 0x15]

Multipath TCP (MPTCP) Linux kernel projects

• Developing a Multipath TCP (MPTCP) proxy server for KT’s GiGA LTE service, which aggregates LTE and Wi-Fi bandwidths, based on the open-source MPTCP Linux kernel. [patents]

• Designing and implementing Balia algorithm -- included in the open-source MPTCP Linux kernel. [ToN'16] [www] [github] [award1] [award2]

• Demonstrating that the Balia algorithm achieves better (i) responsiveness to network changes and (ii) fairness to single path TCP, compared to existing algorithms -- LIA and OLIA. [IETF Internet-Draft]

Transport Protocols for Cloud Data Centers

• DIATCP: Deadline- and Incast-Aware TCP. The implementation has been deployed on a data acquisition network at CERN. [ComNet'14] [Link]

• FastCoRe: Fast coupled retransmission for Multipath TCP. [Systems Journal'18]

• SCCP: Scalable congestion control protocol based on Software Defined Networking (SDN). [Globecom'15]