Xu Zhao: Home

I am a Ph.D. student in the Electrical & Computer Engineering Department at University of Toronto, under the supervision of Professor Ding Yuan.
My research interests are in building automatic tools to enhance software logging and diagnose software failures.
My current work focuses on the automated placement of log printing statements and non-intrusive performance profiling for distributed systems.

Before coming to Toronto, I spent one year in the System Research Group at Microsoft Research Asia and got my B.E. from Tsinghua University in 2013.
I was awarded the Facebook Fellowship 2018-2019.

I will be joining Facebook at the Menlo Park in 2020.

Publications

2017

Log20: Fully Automated Optimal Placement of Log Printing Statements under Specified Overhead Threshold
Xu Zhao, Kirk Rodrigues, Yu Luo, Ding Yuan, Michael Stumm, and Yuanyuan Zhou.
Proceedings of the 26th ACM Symposium on Operating Systems Principles (SOSP), October 2017, Shanghai, China.
The Game of Twenty Questions: Do You Know Where to Log?
Xu Zhao, Kirk Rodrigues, Yu Luo, Ding Yuan, Michael Stumm, and Yuanyuan Zhou.
Proceedings of the 16th Workshop on Hot Topics in Operating Systems (HotOS), May 2017, Whistler, BC, Canada.

2016

Non-intrusive Performance Profiling of Entire Software Stacks based on the Flow Reconstruction Principle
Xu Zhao, Kirk Rodrigues, Yu Luo, Ding Yuan, and Michael Stumm.
Proceedings of the 12th USENIX Symposium on Operating Systems Design and Implementation (OSDI), November 2016, Savannah, GA.

2014

lprof: A Non-intrusive Request Flow Profiler for Distributed Systems
Xu Zhao*, Yongle Zhang*, David Lion, Muhammad FaizanUllah, Yu Luo, Ding Yuan, and Michael Stumm. *: Joint first authors.
Proceedings of the 11th USENIX Symposium on Operating Systems Design and Implementation (OSDI), October 2014, Broomfield, CO.
Simple Testing Can Prevent Most Critical Failures: An Analysis of Production Failures in Distributed Data-intensive Systems
Ding Yuan, Yu Luo, Xin Zhuang, Guilherme Rodrigues, Xu Zhao, Yongle Zhang, Pranay U. Jain, and Michael Stumm.
Proceedings of the 11th USENIX Symposium on Operating Systems Design and Implementation (OSDI), October 2014, Broomfield, CO.
Cybertron: Pushing the limit on I/O reduction in data-parallel programs.
Tian Xiao, Zhenyu Guo, Hucheng Zhou, Jiaxing Zhang, Xu Zhao, Chencheng Ye, Xi Wang, Wei Lin, Wenguang Chen, and Lidong Zhou.
Proceedings of the SIGPLAN annual conference on Object-Oriented Programming, Systems, Languages & Applications (OOPSLA) , October 2014, Portland, OR.

Publications

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