Photo of Timothy Zhu

Timothy Zhu

Assistant Professor

Affiliation(s):

  • School of Electrical Engineering and Computer Science
  • Computer Science and Engineering

W353 Westgate Building

timothyz@cse.psu.edu

814-863-1264

Personal or Departmental Website

Research Areas:

Network and Mobile Systems; Operating Systems and Cloud Computing

Interest Areas:

Research areas: Systems, performance analysis/modeling, resource management, scheduling, cloud computing.

 
 

 

Education

  • BS, Computer Science, Carnegie Mellon University, 2008
  • Ph D, Computer Science, Carnegie Mellon University, 2017

Publications

Conference Proceedings

  • Sultan Mahmud Sajal, Luke Marshall, Beibin Li, Shandan Zhou, Abhisek Pan, Konstantina Mellou, Deepak Narayanan, Timothy Zhu, David Dion, Thomas Moscibroda and Ishai Menache, 2023, "Kerveros: Efficient and Scalable Cloud Admission Control", USENIX, USA
  • Adithya Kumar, Anand Sivasubramaniam and Timothy Zhu, 2023, "SplitRPC: A {Control + Data} Path Splitting RPC Stack for ML Inference Serving", ACM, New York, NY, USA
  • Lexiang Huang, Matthew Magnusson, Abishek Bangalore Muralikrishna, Salman Estyak, Rebecca Isaacs, Abutalib Aghayev, Timothy Zhu and Aleksey Charapko, 2022, "Metastable Failures in the Wild", USENIX, USA
  • Adithya Kumar, Anand Sivasubramaniam and Timothy Zhu, 2022, "Overflowing Emerging Neural Network Inference Tasks from the GPU to the CPU on Heterogeneous Servers", ACM, New York, NY, USA
  • Lexiang Huang and Timothy Zhu, 2021, "tprof: Performance profiling via structural aggregation and automated analysis of distributed systems traces", ACM, New York, NY, USA
  • Nathan Bronson, Abutalib Aghayev, Aleksey Charapko and Timothy Zhu, 2021, "Metastable Failures in Distributed Systems", ACM, New York, NY, USA, pp. 221–227
  • Sultan Mahmud Sajal, Rubaba Hasan, Timothy Zhu, Bhuvan Urgaonkar and Siddhartha Sen, 2021, "TraceSplitter: A New Paradigm for Downscaling Traces", ACM, New York, NY, USA
  • Esmail Asyabi, Azer Bestavros, Erfan Sharafzadeh and Timothy Zhu, 2020, "Peafowl: In-application CPU scheduling to reduce power consumption of in-memory key-value stores", ACM, New York, NY, USA
  • Adithya Kumar, Iyswarya Narayanan, Timothy Zhu and Anand Sivasubramaniam, 2020, "The Fast and The Frugal: Tail Latency Aware Provisioning for Coping with Load Variations", ACM, New York, NY, USA
  • Ataollah Fatahi Baarzi, Timothy Zhu and Bhuvan Urgaonkar, 2019, "BurScale: Using Burstable Instances for Improving the Cost-Efficacy of Autoscaling in the Public Cloud", ACM, New York, NY, USA, pp. 126–138
  • Daniel S. Berger, Benjamin Berg, Timothy Zhu, Siddhartha Sen and Mor Harchol-Balter, 2018, "RobinHood: Tail Latency Aware Caching - Dynamic Reallocation from Cache-Rich to Cache-Poor", USENIX, USA, pp. 195--212
  • Timothy Zhu, Michael A. Kozuch and Mor Harchol-Balter, 2017, "WorkloadCompactor: Reducing Datacenter Cost While Providing Tail Latency SLO Guarantees", ACM, New York, NY, USA, pp. 598–610
  • Timothy Zhu, Daniel S. Berger and Mor Harchol-Balter, 2016, "SNC-Meister: Admitting More Tenants with Tail Latency SLOs", ACM, New York, NY, USA, pp. 374–387
  • Alexey Tumanov, Timothy Zhu, Jun Woo Park, Michael A. Kozuch, Mor Harchol-Balter and Gregory R. Ganger, 2016, "TetriSched: Global Rescheduling with Adaptive Plan-ahead in Dynamic Heterogeneous Clusters", ACM, New York, NY, USA, pp. 35:1–35:16
  • Timothy Zhu, Alexey Tumanov, Michael A. Kozuch, Mor Harchol-Balter and Gregory R. Ganger, 2014, "PriorityMeister: Tail Latency QoS for Shared Networked Storage", ACM, New York, NY, USA, pp. 29:1–29:14
  • Eno Thereska, Hitesh Ballani, Greg O’Shea, Thomas Karagiannis, Antony Rowstron, Tom Talpey, Richard Black and Timothy Zhu, 2013, "IOFlow: A Software-defined Storage Architecture", ACM, New York, NY, USA, pp. 182–196
  • Anshul Gandhi, Timothy Zhu, Mor Harchol-Balter and Michael A. Kozuch, 2012, "SOFTScale: Stealing Opportunistically for Transient Scaling", Springer-Verlag New York, Inc., New York, NY, USA, pp. 142–163
  • Timothy Zhu, Anshul Gandhi, Mor Harchol-Balter and Michael A. Kozuch, 2012, "Saving Cash by Using Less Cache", USENIX Association, Berkeley, CA, USA, pp. 3–3

Magazines/Trade Publications

Research Projects

Honors and Awards

  • EuroSys 2016 best student paper award, EuroSys, April 2016 - April 2016
  • NSF GRFP Fellowship, NSF, 2012 - 2015

Service

Service to Penn State:

Service to External Organizations:

 


 

About

The School of Electrical Engineering and Computer Science was created in the spring of 2015 to allow greater access to courses offered by both departments for undergraduate and graduate students in exciting collaborative research fields.

We offer B.S. degrees in electrical engineering, computer science, computer engineering and data science and graduate degrees (master's degrees and Ph.D.'s) in electrical engineering and computer science and engineering. EECS focuses on the convergence of technologies and disciplines to meet today’s industrial demands.

School of Electrical Engineering and Computer Science

The Pennsylvania State University

207 Electrical Engineering West

University Park, PA 16802

814-863-6740

Department of Computer Science and Engineering

814-865-9505

Department of Electrical Engineering

814-865-7667