Zhenhua Li (李振华)
Tenured Associate Professor & Ph.D. Advisor, School of Software, Tsinghua University
Research Areas: Mobile Networking/Virtualization and Cloud Computing/Gaming
Email:  lizhenhua1983@gmail.com (primary),  lizhenhua1983@tsinghua.edu.cn (unreliable)

Recruitment

 Actively recruiting PostDoc researchers and Ph.D./Master students; see the details. [2025/04/26]

Research Philosophy

 ♥ Understanding realistic problems of today's mobile/network/cloud systems at scale, as well as building intelligent solutions and usable tools to practically address them. In particular, we strive towards reliable networking under extreme environments, through large-scale characterization, in-depth optimization, and cost-efficient virtualization.

♥ Our research has led to actual effect on industrial systems including Xiaomi Mobile, MIUI OS, Huawei DevEco Studio, Tencent Game Buddy, Tencent App Store, Tencent Offline Downloading, Alibaba Cloud, Baidu PhoneGuard, ByteDance Douyin/Toutiao, UUSpeedTest, WiFi.com, and so forth.
Books & Papers ♣ Two books: (1) Content Distribution for Mobile Internet: A Cloud-based Approach, 2nd Edition, Feb. 2023 [full pdf download];  (2) Peer-to-Peer Network: Structure, Application and Design, Sep. 2007, 105 citations [Pre][Ch1][Ch5][Ch9] 

♣ 60+ papers on recognized conferences (SIGCOMM*3, NSDI*4, OSDI*2, SOSP, MobiCom*7, MobiSys*3, EuroSys, FAST*2, SIGMetrics, IMC*3, USENIX Security, NDSS, WWW*2, MM*5, INFOCOM*10, UbiComp) and journals (TMC*10, TON*9, TPDS*7, TOMM*3, TDSC*2, TCC*2, TOS, TOCS, TOMPECS, TOSN)

♣ SIGCOMM'21 Best Student Paper Award, MobiCom'22 Best Community Paper Award, and MobiCom'19 Best Demo Award

Academic Service ♦ Leading Associate Editor of Tsinghua Science and Technology (SCI impact factor: 5.2) in Network and System areas, and Leading Guest Editor of Tsinghua Science and Technology for the Special Issue on TURC Cutting-Edge Intelligence.

♦ Serving on the Organizing/Program Committee of MM'25, WWW'25, INFOCOM'25, INFOCOM'24 (Distinguished PC Member), MM'24 (Outstanding Reviewer), APNet'24 (Publicity Co-Chair), CCFsys'23 (PC Co-Chair), SIGCOMM China'23 (PC Co-Chair), INFOCOM'23 (Distinguished PC Member), INFOCOM'22, INFOCOM'21 (Distinguished PC Member & Session Chair), INFOCOM'20 (Distinguished PC Member & Session Chair), and SIGCOMM China'19 (PC Co-Chair).
*** Representative Work in recent years ***

☑ Our paper in SIGCOMM'25 -- SkeletonHunter: Diagnosing and Localizing Network Failures in Containerized Large Model Training [ppt][code/data][Alibaba Cloud adoption]

☑ Our paper in OSDI'25 -- Fast and Synchronous Crash Consistency with Metadata Write-Once File System [ppt][code/data]

☑ Two papers in NSDI'25 -- (1) Interactive Loop of Mobile Cloud Gaming [ppt][code/data]  (2) Mitigating Scalability Walls of Container Networks [ppt][code/data][Alibaba Cloud adoption]

☑ Two papers in MobiCom'24 -- (1) Rethinking Process Management for Interactive Mobile Systems [ppt][code/data][MIUI OS adoption]  (2) MuV2: Multi-user Volumetric Video [ppt]

☑ Our paper in SOSP'24 -- vSoC: Efficient Virtual System-on-Chip on Heterogeneous Hardware [ppt][code][Huawei DevEco Studio adoption]

☑ Our paper in MobiCom'23 -- Virtual Device Farms for Mobile App Testing at Scale: A Pursuit for Fidelity, Efficiency, and Accessibility [ppt][code/data][ByteDance adoption][Google adoption]

☑ Two papers in MM'23 -- (1) SkipStreaming: Redundancy-free Video Streaming [code/data/demo]  (2) ParliRobo: Participant Light AI Robots [code/data/demo][ByteDance adoption]

☑ Our paper in WWW'23 -- Visual-Aware Testing and Debugging for Web Performance Optimization [ppt][video][code/data]

☑ Best Community Paper Award in MobiCom'22 -- Experience: Practical Indoor Localization for Malls [ppt][video][data][news][Hangzhou XYZ10 Technology adoption]

☑ Our paper in SIGCOMM'22 -- Mobile Access Bandwidth in Practice: Measurement, Analysis, and Implications [ppt][poster][video][code/data][public review][UUSpeedTest adoption][TMC'25]

☑ Our paper in OSDI'22 -- Trinity: High-Performance Mobile Emulation through Graphics Projection [ppt][poster][video][code/data][Huawei DevEco Studio adoption][TOCS'24]

☑ Our paper in SIGMetrics'22 -- Fusing Speed Index during Web Page Loading [ppt][video][code/data]

☑ Our paper in MobiCom'21 -- A Nationwide Census on WiFi Security Threats: Prevalence, Riskiness, and the Economics [ppt][poster][video][teaser][WiFi.com adoption]

♣ Best Student Paper Award in SIGCOMM'21 -- A Nationwide Study on Cellular Reliability: Measurement, Analysis, and Enhancements [ppt][video][code][review][news][MIUI OS adoption]

☑ Our paper in NSDI'21 -- Fast and Light Bandwidth Testing for Internet Users [ppt][poster][video][code][online system][TON'23 version]

☑ Our paper in MobiCom'20 -- Experience: Aging or Glitching? Why Does Android Stop Responding and What Can We Do About It? [ppt][video][code/data][MIUI OS adoption][TMC'24]

☑ Our paper in EuroSys'20 -- Experiences of Landing Machine Learning onto Market-Scale Mobile Malware Detection [ppt][poster][video][code/data][Tencent App Store adoption][TPDS'21]

☑ Our paper in FAST'20 -- Lock-Free Collaboration Support for Cloud Storage Services with Operation Inference & Transformation [ppt][poster][code/data][TPDS'22 version]

☑ Our paper & Best Demo Award in MobiCom'19 -- Mobile Gaming on Personal Computers with Direct Android Emulation [ppt][poster][demo][video][Tencent Game Buddy adoption]

☑ Three papers in MobiSys'19 -- (1) HoneyCloud [ppt][code/data]  (2) Tencent OverlayChecker [ppt][data][TMC'22 version]  (3) Xiaomi MVNO [ppt][TON'20 version][Xiaomi Mobile adoption]

☑ My paper in TOMPECS'19 -- A Quantitative and Comparative Study of Network-level Efficiency for Cloud Storage Services [IMC'14 version][ppt][data][data collector]

☑ Our paper in FAST'18 -- Towards Web-based Delta Synchronization for Cloud Storage Services [ppt][poster][code][news report][TOS'22 version]

♣ Best Student Paper Award in ACM MMSys'17 -- A Measurement Study of Oculus 360 Degree Video Streaming [ppt][code][TOMM'18 version]

☑ My paper in NDSS'17 -- FBS-Radar: Uncovering Fake Base Stations at Scale in the Wild [ppt][presentation][Baidu PhoneGuard adoption][news report]

♣ Cover Article & Excellent Paper Award in JTST'17 (SCI journal) -- Towards A Full-Stack DevOps Environment (PaaS) for Cloud-Hosted Applications

☑ My paper in NSDI'16 -- Exploring Cross-Application Cellular Traffic Optimization with Baidu TrafficGuard [ppt][Baidu PhoneGuard adoption]

☑ My paper in IMC'15 -- Offline Downloading in China: A Comparative Study [ppt][Tencent Offline Downloading adoption][news report]

♣ Best Paper and Spotlight Paper in IEEE Transactions on Cloud Computing, 2015 -- CHARM: A Cost-efficient Multi-cloud Data Hosting Scheme with High Availability [video]
Career:
2023.1 - now         Tenured Associate Professor & Ph.D. Advisor @ School of Software, Tsinghua University, Beijing, China
2018.12 - 2022.12 Tenure-Track Associate Professor & Ph.D. Advisor @ School of Software, Tsinghua University, Beijing, China
2015.11 - 2018.11 Assistant Professor & Ph.D. Advisor @ School of Software, Tsinghua University, Beijing, China
2013.7 - 2015.10   PostDoc @ School of Software, Tsinghua University, Advisor: Prof. Yunhao Liu (ACM/IEEE Fellow)
2009.6 - 2013.6     Ph.D. @ School of EECS, Peking University, Beijing, China, Advisor: Prof. Yafei Dai
2011.9 - 2012.9     Visiting Student @ University of Minnesota, Twin Cities, Advisor: Prof. Zhi-Li Zhang (IEEE Fellow)
2011.9 - 2012.9     Christianity study @ Stadium Village Church, Minneapolis, Tutor: Robert & Joanne Kraftson
2008.6 - 2009.4     Software Engineer @ Marvell Technologies (Shanghai) Co. Ltd
2007.5 - 2007.10   Research Assistant @ Hong Kong Polytechnic University, Advisor: Prof. Jiannong Cao (IEEE Fellow)
2001.9 - 2008.6     Bachelor & Master @ Dept. of Computer, Nanjing University, Advisor: Prof. Guihai Chen (IEEE Fellow)
Awards:（“天下皆知美之为美，斯恶已。皆知善之为善，斯不善已。”）
2025 Outstanding Contribution Award of Tsinghua Science and Technology（《清华学报（英文版）》 杰出贡献奖）
2024 ACM China Doctoral Dissertation Award, Supervisor（ACM中国优博奖，指导教师）
2024 Outstanding Reviewer of ACM Multimedia
2024 Distinguished PC Member of IEEE INFOCOM
2024 Cover Article of JCRD January Issue（《 计算机研究与发展》1月刊封面文章）
2023 Distinguished PC Member of IEEE INFOCOM
2022 Excellent Scientific Researcher of the School of Software, Tsinghua Univeristy（清华大学软件学院科研先进个人）
2022 CCF-IEEE CS Young Computer Scientist Award（中国计算机学会青年科技奖）
2022 Best Community Paper Award of ACM MobiCom
2021 Best Student Paper Award of ACM SIGCOMM
2021 Cover Article of CJICT April Issue（《中国教育信息化》4月刊封面文章）
2021 Distinguished PC Member of IEEE INFOCOM (and Session Chair for Web Systems)
2020 Distinguished PC Member of IEEE INFOCOM (and Session Chair for Video Streaming)
2019 Best Demo Award of ACM MobiCom
2019 Excellent Paper Award of Tsinghua Science and Technology（《清华学报（英文版）》优秀论文奖）
2019 Cover Article of SCIENTIA SINICA Informationis（《中国科学：信息科学》9月刊封面文章）
2018 National Science Fund for Excellent Young Scholars（国家自然科学优秀青年基金）
2017 Best Student Paper Award of ACM MMSys
2017 Cover Article of Tsinghua Science and Technology（《清华学报（英文版）》2月刊封面文章）
2016 Excellence Award of CCF-Tencent Rhino-bird Open Fund（CCF-腾讯犀牛鸟科研基金优秀奖）
2015 Best Paper and Spotlight Paper of IEEE Transactions on Cloud Computing (Jul-Sep Issue)
2015  First Prize of Natural Sciences, Ministry of Education（教育部自然科学奖一等奖）
2015 CAAI Doctoral Thesis Award（中国人工智能学会优秀博士学位论文奖）
2014 Cover Article of CCCF August Issue（《中国计算机学会通讯》8月刊封面文章）
2009 First Prize of China University Press Award（中国大学出版社图书奖一等奖 ）
2009 Master Thesis Award of Jiangsu Province（江苏省优秀硕士学位论文奖）

桃花庵歌

（明）唐寅

桃花坞里桃花庵，桃花庵下桃花仙。  桃花仙人种桃树，又摘桃花卖酒钱。

酒醒只在花前坐，酒醉还来花下眠。  半醒半醉日复日，花落花开年复年。

但愿老死花酒间，不愿鞠躬车马前。  车尘马足富者趣，酒盏花枝贫者缘。

若将富贵比贫贱，一在平地一在天。  若将贫贱比车马，他得驱驰我得闲。

世人笑我太疯癫，我笑他人看不穿。  不见五陵豪杰墓，无花无酒锄作田。

晚钟

洛兵

晚钟敲响从城市那边  飞来宁静的翅膀
有家的人请回你们的家  没家的人请走进那夕阳

晚钟敲响从夕阳的眼中  流出宁静的凄凉
爱我的人请过来一起唱  恨我的人请躲开那月光

晚钟敲响从新月的梦里  落下宁静的忧伤
生者依旧习惯地擦去泪水  逝者已矣请返回你们的天堂

晚钟敲响从天堂上面  传来星空的回荡
醒来的人请守好你们的梦想  沉睡的人请把一切遗忘

当蜘蛛网无情地查封了我的炉台 当灰烬的余烟叹息着贫困的悲哀
我依然固执地铺平失望的灰烬 用美丽的雪花写下：相信未来

当我的紫葡萄化为深秋的露水 当我的鲜花依偎在别人的情怀
我依然固执地用凝霜的枯藤 在凄凉的大地上写下：相信未来

我要用手指那涌向天边的排浪 我要用手掌那托住太阳的大海
摇曳着曙光那枝温暖漂亮的笔杆 用孩子的笔体写下：相信未来

我之所以坚定地相信未来 是我相信未来人们的眼睛
她有拨开历史风尘的睫毛 她有看透岁月篇章的瞳孔

不管人们对于我们腐烂的皮肉 那些迷途的惆怅、失败的苦痛
是寄予感动的热泪、深切的同情 还是给以轻蔑的微笑、辛辣的嘲讽

我坚信人们对于我们的脊骨 那无数次的探索、迷途、失败和成功
一定会给予热情、客观、公正的评定 是的，我焦急地等待着他们的评定

朋友，坚定地相信未来吧 相信不屈不挠的努力
相信战胜死亡的年轻 相信未来、热爱生命！