Career Profile
I am currently a senior researcher and lecturer at ETH Zurich (in SAFARI group led by Prof. Onur Mutlu). I received my Ph.D. from the City University of Hong Kong (co-supervised by Prof. Tei-Wei Kuo and Prof. Chun Jason Xue). I am focusing on the design and optimization of mobile operating systems and architecture, aiming at the needs of rapid start-up and the response of applications, reducing energy consumption, and prolonging the service life of devices.
News
Nov 3, 2024
Our paper is accepted by HPCA 2025 !
Feb 29, 2024
Our paper is accepted by ASPLOS 2024 !
Nov 1, 2023
Our paper is accepted by TPDS !
Publications
Conference Papers
- [C1] Yu Liang; Aofeng Shen; Chun Jason Xue; Riwei Pan; Haiyu Mao; Nika Mansouri Ghiasi; Qingcai Jiang; Rakesh Nadig; Lei Li; Rachata Ausavarungnirun; Mohammad Sadrosadati; Onur Mutlu; [Ariadne: Hotness-Aware and Size-Adaptive Compressed Swap Scheme for Mobile Devices]. In the 31st IEEE International Symposium on High-Performance Computer Architecture (HPCA'25), Las Vegas, USA, 2025-3-1 to 2025-3-5.
- [C2] Jiacheng Huang; Yunmo Zhang; Junqiao Qiu; Yu Liang; Rachata Ausavarungnirun; Qingan Li; Chun Jason Xue; More Apps, Faster Hot-Launch on Mobile Devices via Fore/Background-aware GC-Swap Co-design. In the ACM International Conference on Architectural Support for Programming Languages and Operating Systems (ASPLOS'24), San Diego, USA, 2024-4-27 to 2024-5-1.
- [C3] Changlong Li; Yu Liang*; Rachata Ausavarungnirun; Zongwei Zhu; Liang Shi; Chun Jason Xue; ICE: Collaborating Memory and Process Management for User Experience on Resource-limited Mobile Devices. In the 18th European Conference on Computer Systems (EuroSys'23), Rome, Italy, 2023-5-9 to 2023-5-12. (Mentoring Paper)
- [C4] Yu Liang; Riwei Pan; Tianyu Ren; Yufei Cui; Rachata Ausavarungnirun; Xianzhang Chen; Changlong Li; Tei-Wei Kuo; Chun Jason Xue; CacheSifter: Sifting Cache Files for Boosted Mobile Performance and Lifetime. In the 20th USENIX Conference on File and Storage Technologies (FAST'22), July 10-14, 2022, Santa Clara, CA, USA, 2022-2-22 to 2022-2-24.
- [C5] Yu Liang; Jinheng Li; Rachata Ausavarungnirun; Riwei Pan; Liang Shi; Tei-Wei Kuo; Chun Jason Xue; Acclaim: Adaptive Memory Reclaim to Improve User Experience in Android Systems. In 2020 USENIX Annual Technical Conference (ATC'20), Boston, MA, USA, 2020-7-15 to 2020-7-17.
- [C6] Yu Liang; Jinheng Li; Xianzhang Chen; Rachata Ausavarungnirun; Riwei Pan; Tei-Wei Kuo; Chun Jason Xue; Differentiating Cache Files for Fine-grain Management to Improve Mobile Performance and Lifetime. In the 12th USENIX Workshop on Hot Topics in Storage and File Systems (HotStorage'20), Boston, MA, USA, 2020-7-13 to 2020-7-14.
- [C7] Yu Liang; Qiao Li; Chun Jason Xue; Mismatched Memory Management of Android Smartphones. In the 11th USENIX Workshop on Hot Topics in Storage and File Systems (HotStorage'19), RENTON, WA, USA, 2019-7-8 to 2019-7-9.
- [C8] Qi Li; Aosong Deng; Congming Gao; Yu Liang; Liang Shi; Edwin H.-M. Sha; Optimizing Fragmentation and Segment Cleaning for CPS based Storage Devices. In 2019 ACM/SIGAPP Symposium on Applied Computing (SAC'19), Limassol, Cyprus, 2019-4-8 to 2019-4-12.
- [C9] Yu Liang; Chenchen Fu; Yajuan Du; Aosong Deng; Mengying Zhao; Liang Shi; Chun Jason Xue; An Empirical Study of F2FS on Mobile Devices. In _IEEE International Conference on Embedded and Real-Time Computing Systems and Applications (RTCSA'17), Hsinchu, Taiwan, China, 2017-8-16 to 2017-8-18.
Journal Papers
- [J1] Changlong Li, Yu Liang*; Liang Shi; Chao wang; Chun Jason Xue; Xuehai Zhou Flexible and Efficient Memory Swapping Across Mobile Devices with LegoSwap. IEEE Transactions on Parallel and Distributed Systems (TPDS), 2023. (Mentoring Paper)
- [J2] Yu Liang; Riwei Pan; Yajuan Du; Chenchen Fu; Liang Shi; Tei-Wei Kuo; Chun Jason Xue; Read-Ahead Efficiency on Mobile Devices: Observation, Characterization, and Optimization. IEEE Transactions on Computers (TC), 2021, 70: 99-110.
- [J3] Yu Liang; Cheng Ji; Chenchen Fu; Rachata Ausavarungnirun; Qiao Li; Riwei Pan; Siyu Chen;Liang Shi; Tei-Wei Kuo; Chun Jason Xue; iTRIM: I/O-Aware TRIM for Improving User Experience on Mobile Devices. IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems (TCAD), 2021, 40: 1782-1795.
- [J4] Changlong Li; Liang Shi; Yu Liang; Chun Jason Xue; SEAL: User Experience-Aware Two-Level Swap for Mobile Devices. IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems (TCAD), 2020, 39: 4102-4114.
- [J5] Qiao Li; Liang Shi; Yejia Di; Congming Gao; Cheng Ji; Yu Liang; Chun Jason Xue; Process Variation Aware Read Performance Improvement for LDPC-Based nand Flash Memory. IEEE Transactionson Reliability (TR), 2020, 69: 310-321.
- [J6] Cheng Ji; Riwei Pan; Li-Pin Chang; Liang Shi; Zongwei Zhu; Yu Liang; Tei-Wei Kuo; Chun Jason Xue; Inspection and Characterization of App File Usage in Mobile Devices. ACM Transactions on Storage (TOS), 2020, 16: 1-25.
- [J7] Yu Liang; Yajuan Du; Chenchen Fu; Riwei Pan; Liang Shi; Chun Jason Xue; Boosting read-ahead efficiency for improved user experience on mobile devices. SIGBED Review, 2019, 16: 75-80.
Patents
- [1] Chun Jason Xue, Riwei Pan, Yu Liang, Pengcheng Fu, Jingjing Mao. Data storage method and device, Patent no.: CN118625993A, 2024, China.
- [2] Chun Jason Xue, Yu Liang, Lei Li, Jian Yi, Jingjing Mao. Memory allocation method, electronic equipment and storage medium, Patent no.: CN118535315A, 2024, China.
- [3] Chun Jason Xue, Riwei Pan, Yu Liang, Jing Qian, Jiaxin Li. File searching method and device based on electronic equipment, Patent no.: CN116821076A, 2023, China.
- [4] Chun Jason Xue, Riwei Pan, Yu Liang, Jiaxin Li, Jing Qian. Data deduplication method and electronic equipment, Patent no.: CN116821075A, 2023, China.
- [5] Jiacheng Huang, Qingan Li, Yu Liang, Chun Jason Xue, Jiaxin Li, Jing Qian. Method for controlling memory and electronic equipment, Patent no.: CN116820734A, 2023, China.
- [6] Chun Jason Xue, Yu Liang, Riwei Pan, Zhipeng Li, Ge Qiu, Jing Qian, Jian Yi, Jiaxin Li. Management method and management device for cache files, Patent no.: CN115617255A, 2023, China.
- [7] Chun Jason Xue, Riwei Pan, Yu Liang, Zhipeng Li, Ge Qiu, Jing Qian, Jian Yi, Jiaxin Li, Memory space management method and memory space management device, Patent no.: CN115543600A, 2022, China.
- [8] Jason Chun Xue, Yu Liang, Liang Shi. Method for accelerating starting of application program and electronic equipment, Patent no.: CN112783564B, 2021, China.
- [9] Jason Chun Xue, Liang Shi, Yu Liang. Hot and cold data separation method and device, Patent no.: CN105677242B, 2018, China.
Highlighted Research Impact
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Cache file optimization [C4] and file deduplication work have been adopted by our industry collaborator and used in their OS to save storage space on mobile devices.
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Provided other two optimization prototypes for mobile devices (based on my papers [J2] and [C5]). They have been adopted by commercial smartphones with over 400 million users.
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A TRIM optimization “f2fs: relax async discard commands more” motivated by my paper [J3] has been submitted to the Linux kernel Archives by a collaborator.
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Provide code interpretation and analysis of the advantages and disadvantages of F2FS to help its deployment on commercial mobile devices. (The collaborator is the first smartphone vendor that uses F2FS, and now F2FS is one of the most popular mobile file systems.)
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Aiming at the data security of F2FS file system, a metadata and normal data separated storage scheme is proposed.
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To improve eMMC lifetime, we propose reducing unnecessary data writebacks based on the access patterns of mobile application files.
The proposed techniques are planned to be implemented on the eMMC commercial products of our cooperative eMMC controller vendor.
Academic Services
- PC member of ATC'23, ATC'24, DSN'24, SYSTOR'24, EuroSys'25, ATC'25, FAST'25, and FAST'26.
- Reviewer of IEEE Transactions on Computers, Transactions on Storage, International Journal of Intelligent Systems, and Computing Surveys.