Yiying Zhang
Email: yyzhang AT cs DOT wisc DOT edu
Computer Sciences Department
1210 W. Dayton St.
Madison, WI 53706
(608) 890-0123
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Yiying Zhang
Email: yyzhang AT cs DOT wisc DOT edu
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About Me | Research Interests | Selected Publications | Working Experience | CV About MeI am a Ph.D. candidate at the Department of Computer Sciences at the University of Wisconsin-Madison working with Professors Andrea Arpaci-Dusseau and Remzi Arpaci-Dusseau. I am part of the ADvanced Systems Lab (ADSL) and the Wisconsin Institute on Software-defined Datacenters in Madison (WISDoM). Before coming to Madison, I received my M.S. in Computer Engineering from University of Florida and my B.S. in Computer Science from Fudan University.I expect to graduate in Summer 2013. I am on the job market, considering opportunities in academia and industry. If you are interested in hiring me, feel free to contact me. Please find my CV here. Research InterestsMy research interests are in the Operating Systems area focusing on File and Storage Systems. My dissertation titled "De-virtualization in Storage Systems" focuses on removing excess virtualization, or redundant levels of virtualization, in storage systems. By removing excess virtualization, both mapping table space and performance overhead can be largely reduced. Specifically, I designed a new I/O interface called Nameless Writes to remove the virtualization in flash-based SSDs by storing physical addresses directly in file systems. I first evaluated Nameless Writes with emulation and then built a Nameless Write hardware prototype with traditional SATA interface. Currently, I am building a tool to dynamically remove storage device virtualization with small changes in device, OS, and interface.Apart from my dissertation work, I recently worked on the problem of storage-level cache warm up. I have also worked on utilizing inherent duplication to improve the reliability and availability of storage arrays. Selected Publications
Warped Mirrors for Flash
Warming up Storage-Level Caches with Bonfire
Getting Real: Lessons in Transitioning Research Simulations into Hardware Systems
De-indirection for Flash-based SSDs with Nameless Writes
FlashTier: a Lightweight, Consistent and Durable Storage Cache
Working ExperienceSummer Intern. Advanced Technology Group, NetAppSunnyvale, CA, June - Aug, 2012 System and Method for an Efficient Cache Warm-up Lakshmi N. Bairavasundaram, Gokul Soundararajan, Mark W. Storer, Yiying Zhang Patent filed Dec 2012 Summer Intern. Microsoft Research - Silicon Valley Mountain View, CA, June - Aug, 2010 Duplicate-aware Disk Arrays Vijayan Prabhakaran, Yiying Zhang US Patent #20120226936 Summer Intern. Microsoft Shanghai, China, June - Aug, 2008 Software Design Engineer. Innovative Scheduling Gainesville, FL, Jan - Aug, 2007 |