OSDI '26 Technical Sessions

Monday, July 13

7:30 am–9:00 am

Continental Breakfast

9:00 am–9:15 am

Opening Remarks and Awards

Program Co-Chairs: Eddie Kohler, Harvard University, and Amar Phanishayee, NVIDIA

9:15 am–10:15 am

10:15 am–10:45 am

Coffee and Tea Break

10:45 am–12:25 pm

Track 1

KV Cache and Long Context

Contextra: Hierarchical Context Caching for Long Context Language Model Serving

Zhiqiang Xie, Stanford University; Ziyi Xu, Shanghai Jiao Tong University; Mark Zhao, University of Colorado Boulder; Yuwei An, Carnegie Mellon University; Vikram Sharma Mailthody, Nvidia; Scott Mahlke, University of Michigan & Nvidia Research; Michael Garland, NVIDIA; Christos Kozyrakis, Stanford University & Nvidia Research

Chimera: Cost-Efficient Multi-LLM Serving via GPU Memory Ballooning

Shan Yu, UCLA; Yifan Qiao, UC Berkeley; Mingyuan Ma, Harvard; Yangmin Li, NVIDIA; Shuo Yang, University of California, Berkeley; Xinyuan Tong, University of Edinburgh; Yang Wang, Intel; Zhiqiang Xie, Stanford University; Yuwei An, Carnegie Mellon University; Shiyi Cao, University of California, Berkeley; Ke Bao, LMSYS; Deepak Vij, Xiaoning Ding, and Yichen Wang, ByteDance; Qingda Lu, Alibaba; Zhong Wang, Tsinghua University; Gao Gao, Novita AI; Harry Xu and Junyi Shu, UCLA; Jiarong Xing, Rice University; Ying Sheng, UCLA

Track 2

Memory Tiering and CXL

Finding NEMO: Nimble and Expressive Memory Observability

Shihang Li and Matthew Giordano, University of Washington; Tushar Garg, Meta; Rohan Kadekodi, University of Washington; Daniel S. Berger, Microsoft Azure; Baris Kasikci, Thomas Anderson, and Simon Peter, University of Washington

MDK: rethinking the data center memory reclamation problem

Shaurya Patel, Google and University of British Columbia; Suli Yang and Yawen Wang, Google; Kan Wu, xAI; Alexandra (Sasha) Fedorova, University of British Columbia and MongoDB; Margo Seltzer, University of British Columbia; Kimberly Keeton, Google

Track 3

Sandboxing, Access Control, and Drivers

USEC: A User-Requirement-Driven Mandatory Access Control Framework for Operating Systems

Yu Jiang, Tsinghua University; Wenhuan Liu, Tsinghua University; UnionTech Software Technology Co., Ltd; Fuchen Ma, Tsinghua University; Lei Zhang, UnionTech Software Technology Co., Ltd.; Yuheng Shen and Yuanliang Chen, Tsinghua University; He Li, UnionTech Software Technology Co., Ltd.; Quan Zhang and Chijin Zhou, East China Normal University

Operational Systems Paper

Mohabi: Disaggregating and Sandboxing the Firefox JavaScript Engine

Abhishek Sharma and Anand Balaji, UT Austin; Zachary Yedidia, Stanford University; Anthony Du and Taehyun Noh, UT Austin; Iain Ireland, Jan de Mooij, and Matthew Gaudet, Mozilla; Tal Garfinkel, Google; Deian Stefan and Hovav Shacham, UC San Diego; Shravan Narayan, UT Austin

12:25 pm–2:00 pm

Lunch (on your own)

2:00 pm–3:40 pm

Track 1

LLM Training at Scale

Teaching The Old Dog New Tricks: Building Efficient Data Pipelines for Large-Scale LLM Pre-training

Luofan Chen and Chenhan Wang, University of Science and Technology of China; W. Zhang, Jinxin Chi, Hequan Zhang, Zanbo Wang, Chenyuan Wang, Lishu Luo, Sijin Wu, J. Hu, Jun Wang, and Cheng Chen, ByteDance Seed; Lixin Huang, Liyang Zhao, Yong Tian, and Jun Guo, ByteDance; Youhui Bai, University of Science and Technology of China; Wencong Xiao, ByteDance Seed; Kang Chen, Tsinghua University; Cheng Li, University of Science and Technology of China

Operational Systems Paper
Track 2

Testing, Debugging, and Root Causing

Controlling Opaque-Component Effects with Semisolates and Ef

Tianyu (Ezri) Zhu, Stevens Institute of Technology; Di Jin, Grigoris Ntousakis, and Evangelos Lamprou, Brown University; Georgios Liargkovas, Columbia University; Calvin Eng, Brown University; Konstantinos Kallas, University of California, Los Angeles; Michael Greenberg, Stevens Institute of Technology; Nikos Vasilakis, Brown University

Track 3

Kernel Scheduling and Tail Latency

What Are You (M)Waiting For: The Hidden Cost of Idle in the Hyperscale Cloud

Yun Wang, Shanghai Jiao Tong University; Xingguo Jia, Alibaba Cloud; Ben Luo and Kenan Liu, Alibaba Group; Shengdong Dai, Alibaba Cloud; Jingdong Han and Weihao Chen, Alibaba Group; Yicheng Gu and Xingzi Yu, Shanghai Jiao Tong University; Yibin Shen and Jiesheng Wu, Alibaba Cloud; Zhengwei Qi and Haibing Guan, Shanghai Jiao Tong University

Operational Systems Paper

Xkernel: Rethinking Performance Tunability of Operating System Kernels

Zhongjie Chen, Tsinghua University and Microsoft Research; Wentao Zhang, University of Illinois Urbana-Champaign; Yulong Tang and Ran Shu, Microsoft Research; Fengyuan Ren, Tsinghua University; Tianyin Xu, University of Illinois Urbana–Champaign; Jing Liu, Microsoft Research

3:40 pm–4:10 pm

Coffee and Tea Break

4:10 pm–5:50 pm

Track 1

Agentic AI and LLM Operations

ACE: An AI-Driven Code Efficiency Optimizer for Warehouse Scale Computers

Hannah Lin, Google; Martin Maas, Google DeepMind; Maximilian Roquemore, Google and point72; Arman Hasanzadeh, Google DeepMind; Fred Lewis, Yusuf Simonson, Ameya Shringi, Hongwen Dai, Patrick Musau, and Tzu-Wei Yang, Google; Amir Yazdan Bakhsh and Deniz Altinbüken, Google DeepMind; Florin Papa, Maggie Nolan Edmonds, Aditya Patil, and Don Schwarz, Google; Satish Chandra, Meta; Chris Kennelly, Google; Milad Hashemi, Google DeepMind; Parthasarathy Ranganathan, Google

Operational Systems Paper

StriaTrace: Efficient Tracing and Diagnosis for Online LLM Inference

Haonan Wu, Shanghai Jiao Tong University and Alibaba Cloud; Yanqing Chen and Kun Qian, Alibaba Cloud; Xue Li, Alibaba Group; Erci Xu, Shanghai Jiao Tong University and Alibaba Cloud; Ennan Zhai, Alibaba Cloud; Wenyuan Yu and Jingren Zhou, Alibaba Group

Operational Systems Paper
Track 2

Program Analysis

Sys: Speculative Script Reordering at Subprocess Granularity

Georgios Liargkovas, Columbia University; Di Jin, Brown University; Tianyu (Ezri) Zhu and Dan Liu, Stevens Institute of Technology; A. Bolun Thompson, University of California, Los Angeles; Anirudh Narsipur, Seong-Heon Jung, and Siddhartha Prasad, Brown University; Diomidis Spinellis, Athens University of Economics and Business; Michael Greenberg, Stevens Institute of Technology; Konstantinos Kallas, University of California, Los Angeles; Nikos Vasilakis, Brown University

Track 3

Synchronization

6:00 pm–7:00 pm

Welcome Get-Together

Tuesday, July 14

8:00 am–9:00 am

Continental Breakfast

9:00 am–10:40 am

Track 1

RL Training at Scale

Weave: Efficient Co-Scheduling for Disaggregated RL Post-Training

Tianyuan Wu and Lunxi Cao, Hong Kong University of Science and Technology; Yining Wei, UIUC; Wei Gao, Yuheng Zhao, and Dakai An, Hong Kong University of Science and Technology; Shaopan Xiong, Zhiqiang Lv, Ju Huang, Siran Yang, Yinghao Yu, Jiamang Wang, and Lin Qu, Alibaba Group; Wei Wang, Hong Kong University of Science and Technology

RLux: Flexible and Efficient Large-scale Reinforcement Learning via Macro-to-Micro Flow Transformation

Chao Yu, Tsinghua University; Yuanqing Wang, Peking University; Zhen Guo, Hao Lin, and Si Xu, Infinigence AI; Hongzhi Zang, Tsinghua University; Quanlu Zhang, Infinigence AI; Yongji Wu, UC Berkeley; Chunyang Zhu and Junhao Hu, Infinigence AI; Zixiao Huang, Tsinghua University; Mingjie Wei, Harbin Institute of Technology; Yuqing Xie, Tsinghua University; Ke Yang, Harbin Institute of Technology; Bo Dai, Beihang University; Zhexuan Xu and Jiakun Du, Tsinghua University; Xiangyuan Wang, Peking University; Xu Fu and Letong Shi, Infinigence AI; Zhihao Liu, Institute of Automation, Chinese Academy of Sciences; Kang Chen, Peking University; Weilin Liu, Infinigence AI; Gang Liu, Tsinghua University; Boxun Li, Infinigence AI; Jianlei Yang, Beihang University; Zhi Yang, Peking University; Guohao Dai, Shanghai Jiao Tong University; Yu Wang, Tsinghua University

DynaRL: Flexible and Dynamic Scheduling of Large-scale Reinforcement Learning Training

Yuanqing Wang, Peking University; Hao Lin, Junhao Hu, Chunyang Zhu, Quanlu Zhang, and Zhen Guo, Infinigence AI; Yuchen Zhang, Institute of Computing Technology, Chinese Academy of Sciences; Xu Fu and Si Xu, Infinigence AI; Bo Dai, BeiHang University; Zixiao Huang and Chao Yu, Tsinghua University; Boxun Li, Infinigence AI; Guohao Dai, Shanghai Jiao Tong University; Zhi Yang, Peking University; Yu Wang, Tsinghua University

MARS: Disaggregated Multi-Task Agentic RL Training at Scale

Wei Gao, Yuheng Zhao, and Tianyuan Wu, Hong Kong University of Science and Technology; Shaopan Xiong and Weixun Wang, Alibaba Group; Dakai An and Lunxi Cao, Hong Kong University of Science and Technology; Dilxat Muhtar, Zichen Liu, Haizhou Zhao, Ju Huang, Siran Yang, Wenbo Su, Jiamang Wang, Lin Qu, and Bo Zheng, Alibaba Group; Yongbin Li, Tongyi Lab, Alibaba; Wei Wang, Hong Kong University of Science and Technology

Track 2

Disaggregated Memory Systems

Blowfish: Elastic Virtual Machine Memory for Disaggregated Memory

Yulong Zhang, Institute of Computing Technology, Chinese Academy of Sciences; Yilong Luo and Diyu Zhou, Peking University; Quan Chen, Shanghai Jiao Tong University; Quanxi Li, Institute of Computing Technology, Chinese Academy of Sciences; Mosong Zhou and Lei Zhu, Huawei Cloud; Senbo Fu and Qian Peng, Huawei Cloud Computing Technologies Co., Ltd., Xi'an, Shaanxi, China; Huimin Cui, Institute of Computing Technology, CAS; Xiaobing Feng, Institute of Computing Technology Chinese Academy of Sciences; Tao Xie, Peking University; Chenxi Wang, Institute of Computing Technology, Chinese Academy of Sciences; University of Chinese Academy of Sciences

Espresso: Constructing Cost-Efficient CXL JBOF via Inter-SSD Computing Resource Sharing

Shushu Yi, Yuda An, Li Peng, and Xiurui Pan, Peking University; Qiao Li, Mohamed bin Zayed University of Artificial Intelligence; Jieming Yin, Nanjing University of Posts and Telecommunications; Guangyan Zhang, Tsinghua University; Wenfei Wu, Peking University; Chenxi Wang, University of Chinese Academy of Sciences; Diyu Zhou, Peking University; Zhenlin Wang, Michigan Tech; Xiaolin Wang, Peking University, China; Yingwei Luo, Peking University; Ke Zhou, Huazhong University of Science and Technology (HUST); Jie Zhang, Peking University

Track 3

Confidential Computing

JANUS: Cross-World, Cooperative Nested Virtualization for Secure Containers

Jiangshan Lai, Ant Group; Hang Huang, Huazhong University of Science and Technology; Quan Xu and Zhen Ren, Alibaba Group; Wenlong Hou, Ant Group; Wei Guo, Alibaba Group; Jia Rao and Hui Lu, The University of Texas at Arlington; Weidong Han, Alibaba Group; Jiesheng Wu, Alibaba Cloud; Jiang Liu, Alibaba Group; Naixuan Guan and Yibin Shen, Alibaba Cloud; Feng Yu and Xu Wang, Ant Group; Shiqiang Zhang, Alibaba Cloud; Zhiheng Tao, Ant Group; Yisheng Xie, Alibaba Cloud; Song Wu and Hai Jin, Huazhong University of Science and Technology

μUSB: Practical and Safe USB Driver Reuse for Arm TrustZone

Xuankai Zhang, Sijin Li (co-primary), and Pei Meng (co-primary), University of Electronic Science and Technology of China; Meng Wang, CISPA; Yongzhao Zhang, Ting Chen, Xiaosong Zhang, and Liwei Guo, University of Electronic Science and Technology of China

10:40 am–11:10 am

Coffee and Tea Break

11:10 am–12:30 pm

Track 1

Expert Mixture

UEP: Portable Expert-Parallel Communication

Ziming Mao, UC Berkeley; Yihan Zhang, UC Davis; Chihan Cui, University of Wisconsin–Madison; Zhen Huang, AMD; Kaichao You, Inferact Inc.; Zhongjie Chen, Tsinghua University; Zhiying Xu, Amazon Web Services; Zhenyu Gu, AMD; Scott Shenker, UC Berkeley and ICSI; Costin Raiciu, Broadcom and Pollitehnica of Bucharest; Yang Zhou, UC Davis; Ion Stoica, UC Berkeley

An Extensible Software Transport Layer for Machine Learning Workloads

Yang Zhou, UC Davis and UC Berkeley; Zhongjie Chen, Tsinghua University; Ziming Mao, UC Berkeley; ChonLam Lao, Harvard University; Shuo Yang, UC Berkeley; Pravein Govindan Kannan, IBM Research; Xizhi Zhang, Tsinghua University; Jiaqi Gao, unaffiliated; Yilong Zhao, UC Berkeley; Kaichao You, Inferact Inc.; Fengyuan Ren, Tsinghua University; Zhiying Xu, Amazon Web Services; Costin Raiciu, University Pollitehnica of Bucharest and Broadcom; Ion Stoica, UC Berkeley

Track 2

Power, Energy, and Sustainability

Track 3

Consensus and Byzantine Fault Tolerance

Equal Opportunity: A Correctness Condition for Ordered Consensus

Yunhao Zhang, Cornell University; Haobin Ni, University of Washington; Soumya Basu, Vigil Markets; Shir Cohen, Cornell University; Maofan Yin, UC Santa Barbara; Lorenzo Alvisi and Robbert van Renesse, Cornell University; Qi Chen and Lidong Zhou, Microsoft Research

PoliceCar: Saving BFT through Racing

Neil Giridharan and Shubham Mishra, UC Berkeley; Lorenzo Alvisi, Cornell University; Natacha Crooks, UC Berkeley; Benjamin Marsh, Sei Labs; Hein Meling, University of Stavanger; Kartik Nayak, Duke University; Grzegorz Prusak, Sei Labs

12:30 pm–2:00 pm

Symposium Luncheon

2:00 pm–3:20 pm

Track 1

Training Reliability and Silent Errors

SDCs in the Wild: Characterizing and Diagnosing SDC-defective GPUs in Production LLM Training

Wenxin Zheng, Shanghai Jiao Tong University, ByteDance Seed; Bin Xu, Jinyu Gu, and Xingda Wei, Shanghai Jiao Tong University; Haibo Chen, Shanghai JiaoTong University; Wenxiao Wang, Yun Zhang, Zuquan Song, Gaohong Liu, Yucheng Nie, Mingcong Han, Zhe Nan, Zhuolin Zheng, Huan Yu, Shuguang Wang, Ziming Zhou, Hang Zhu, and Wencong Xiao, ByteDance Seed; Xin Liu, ByteDance Inc.

Operational Systems Paper

RobustRL: Role-based Fault Tolerance System for RL Post-Training

Zhenqian Chen and Baoquan Zhong, Zhejiang University; Xiang Li, unaffiliated; Qing Dai, Xinkui Zhao, and Miao Ye, Zhejiang University; Cheng Ren, unaffiliated; Lufei Zhang, State Key Laboratory of Mathematical Engineering and Advanced Computing, China; Jianwei Yin, Zhejiang University

Track 2

Filesystems and I/O Acceleration

Scaling the IO wall with Declarative IO

Sara McAllister, Google and University of Wisconsin, Madison and Carnegie Mellon University; Sanjith Athlur, Theo Gregersen, Timothy Kim, Yiwei Chen, Sarvesh Tandon, and Lucy Wang, Carnegie Mellon University; Daniel S. Berger, Microsoft and University of Washington and Carnegie Mellon University; Saurabh Kadekodi and Arif Merchant, Google; Benjamin Berg, University of North Carolina at Chapel Hill; Nathan Beckmann, Rashmi Vinayak, George Amvrosiadis, and Gregory R. Ganger, Carnegie Mellon University

Track 3

Close to the Network

3:20 pm–3:50 pm

Coffee and Tea Break

3:50 pm–5:10 pm

Track 1

Graphs, ANN, and Vector Search

Efficient GPU-Centric Evolving Graph Processing at Scale

Yunmo Zhang and Jiacheng Huang, City University of Hong Kong; Xizhe Yin, Independent Researcher; Junqiao Qiu, City University of Hong Kong; Hong Xu, The Chinese University of Hong Kong; Chun Jason Xue, Mohamed bin Zayed University of Artificial Intelligence

Track 2

Durable and Trustworthy Storage

The LogDrive: Composable Durability for Cloud-Based Shared Logs

Gardner Vickers and Lucas Bradstreet, Confluent; Mahesh Balakrishnan, Meta; Prince Mahajan, Confluent; David Mao, unaffiliated; Xavier Léauté, Ismael Juma, Nikhil Bhatia, Jack Vanlightly, Prateek Jindal, Sumit Arrawatia, Andrew Grant, Dhruvil Shah, Dimitar Dimitrov, Gaurav Badoni, Shimiao Zhang, and Yang Yu, Confluent

Track 3

Virtualization and Live Migration

Inside Out: A Paradigm Shift In VM Introspection

Dufy Teguia, University Grenoble Alpes and Orange Labs; Louis Duval, University Grenoble Alpes; Teo Pisenti, University of Toulouse; Kahina Lazri, Orange Labs; Daniel Hagimont, University of Toulouse, Toulouse, France; Thomas Pasquier, University of British Columbia; Renaud Lachaize, University Grenoble Alpes; Alain Tchana, Grenoble INP-UGA

5:30 pm–7:00 pm

Poster Session and Reception

Sponsored by Amazon

Check out the cool new ideas and the latest preliminary research on display at the Poster Session and Reception. Enjoy dinner, drinks, and the chance to connect with other attendees, authors, and symposium organizers.

Wednesday, July 15

8:00 am–9:00 am

Continental Breakfast

9:00 am–10:40 am

Track 1

Disaggregated LLM Serving

Track 2

GPU Compilers and Kernels

TGX: A Compiler and Runtime for Mega-Kernelizing Tensor Programs

Xinhao Cheng, Zhihao Zhang, Yu Zhou, and Jianan Ji, Carnegie Mellon University; Jinchen Jiang, Tsinghua University; Zepeng Zhao and Ziruo Xiao, Carnegie Mellon University; Zihao Ye, NVIDIA; Yingyi Huang, Ruihang Lai, Hongyi Jin, Bohan Hou, Mengdi Wu, Yixin Dong, and Anthony Yip, Carnegie Mellon University; Zihao Ye, University of Michigan; Songting Wang, Carnegie Mellon University; Wenqin Yang, Independent Researcher; Xupeng Miao, Purdue University; Tianqi Chen and Zhihao Jia, Carnegie Mellon University

VTC: DNN Compilation with Virtual Tensors for Data Movement Elimination

Muyan Hu, Ahan Gupta, and Jiachen Yuan, University of Illinois Urbana–Champaign; Vima Gupta, Georgia Institute of Technology; Taeksang Kim and Xin Xu, University of Illinois Urbana–Champaign; Janardhan Kulkarni and Ofer Dekel, Microsoft; Vikram Adve and Charith Mendis, University of Illinois Urbana–Champaign

Track 3

Serverless Plus Resilence

Continuum: An Interruption-Resilient Runtime for ML Training

ChonLam Lao, Alibaba Cloud & Harvard University; Jiaqi Gao, Jiamin Cao, Zhipeng Zhang, Pengcheng Zhang, and Jiangfei Duan, Alibaba Cloud; Minlan Yu, Harvard University; Aditya Akella, UT Austin; Zhilong Zheng, Yu Guan, Yichi Xu, Yong Li, Ennan Zhai, Dennis Cai, Zhengping Qian, and Jingren Zhou, Alibaba Cloud

10:40 am–11:10 am

Coffee and Tea Break

11:10 am–12:30 pm

Track 1

Accelerator and Device Virtualization

A GPU Memory Allocator with Device-Side Page Table Materialization and Deferred TLB Coherence

Yangyu Zhang, Institute of Computing Technology, Chinese Academy of Sciences; Lei Chen, University of Chinese Academy of Sciences; Chunwei Xia, University of Leeds; Shuaijiang Li, Shuoming Zhang, Zhicheng Li, and Qianqi Sun, Institute of Computing Technology, Chinese Academy of Sciences; Jiawei Xiao, University of Chinese Academy of Sciences; Ruiyuan Xu, Ao Chen, and Guangli Li, Xiaobing Feng, and Huimin Cui, Institute of Computing Technology, Chinese Academy of Sciences; Chenxi Wang, Institute of Computing Technology, Chinese Academy of Sciences; University of Chinese Academy of Sciences; Jiacheng Zhao, Institute of Computing Technology, Chinese Academy of Sciences

Virtualizing eBPF with Late-Binding

Jing Zhang, Shanghai Jiao Tong University; Xiaguannan Song, Harbin Institute of Technology, Shenzhen; Dong Du, Yubin Xia, and Binyu Zang, Shanghai Jiao Tong University; Haibo Chen, Shanghai JiaoTong University

Track 2

Fleet and Cluster Scheduling

PIMS: Fleet-wide Datacenter Maintenance with Minimal Capacity Buffer and Predictable Latency

Benjamin Leonhardi, Meta; Evangelia Kalyvianaki, University of Cambridge; Yang Wang, The Ohio State Universty and Meta; Abdelrahman Adam, Agshin Nabiyev, Aleks Shirokov, Amitav Mohanty, Daniil Balenko, Elaine Zhao, and Essam Ewaisha, Meta; Hongbo Dong, Independent Researcher; Igor Marnat, Lev Novikov, and Min Zeng, Meta; Steven Shingler, Independent Researcher; Timofey Durakov, Wiliam de Abreu Pinho, Ben Christensen, Mayank Pundir, and Kaushik Veeraraghavan, Meta

Operational Systems Paper

Heterogeneity at Hyperscale: Characterization and Scheduling of Large Production AI Clusters

Suyi Li, Lingyun Yang, Haoxuan Yu, Sheng Yao, Tianyuan Wu, Xiaoxiao Jiang, and Hanfeng Lu, Hong Kong University of Science and Technology; Kangjin Wang, Alibaba Group; Chenhao Wang, Fudan University; Shenglin Xu, Alibaba Group; Lun Wang, University of Science and Technology of China; Qingyang Duan, Shenghao Liang, Xiu Lin, Meng Zhang, Wenchao Wu, Yinghao Yu, Guodong Yang, and Liping Zhang, Alibaba Group; Wei Wang, Hong Kong University of Science and Technology

Operational Systems Paper
Track 3

A Coherent, Consistent Session on Caching

12:30 pm–2:00 pm

Lunch (on your own)

2:00 pm–3:20 pm

Track 1

Mobile and Edge Systems

Track 2

Wild Cards

3:20 pm–3:50 pm

Coffee and Tea Break

3:50 pm–5:10 pm

Track 1

Tooling Potpourri

Track 2

The Session About Correctness

jwmalloc: A Verified Memory Allocator for Mobile Devices

Jiawei Wang, Ming Fu, Ruixian Wang, and Chao Xu, Huawei Central Software Institute; Jonas Oberhauser, Huawei Hilbert Research Center, Huawei Central Software Institute; Haibo Chen, Huawei Central Software Institute, Shanghai Jiao Tong University