Hi, I am a systems researcher working at VMware Research (VRG). I'm interested in Operating Systems design and implementation, networks and system software interaction with emerging hardware technologies.
I graduated with a Doctor of Sciences in Computer Science from ETH Zürich in 2017. My thesis involved (among other things) hacking on the Barrelfish Project.
In 2010, I co-founded a start-up called Texercises, a collaborative exercise database for teachers and students. Texercises was acquired by edTechLab AG in 2015 (see taskbase.com).
Latest announcements
- We released the nrkernel as an open-source project. The project explores the design of a new OS kernel that uses operation logging, flat-combining and replication to improve scalability of OS data-structures.
- I'm holding the 2nd part of the Rust workshop on March 31st at DevPulseCon 2021 together with Ben Pfaff.
- Ben Pfaff and I held a Rust workshop at DevPulseCon 2020.
- We released node-replication: A library to transform single-threaded data-structures into concurrent ones.
Latest Publications
- Sharding the State Machine: Automated Modular Reasoning for Complex Concurrent Systems. Travis Hance, Yi Zhou, Andrea Lattuada, Reto Achermann, Alex Conway, Ryan Stutsman, Gerd Zellweger, Chris Hawblitzel, Jon Howell, Bryan Parno. Proceedings of the 17th USENIX Symposium on Operating Systems Design and Implementation (OSDI, Boston, USA, July 2023).
- Cache-Coherent Accelerators for Persistent Memory Crash Consistency. Ankit Bhardwaj, Todd Thornley, Vinita Pawar, Reto Achermann, Gerd Zellweger, Ryan Stutsman. Proceedings of the 14th ACM Workshop on Hot Topics in Storage and File Systems (HotStorage, Virtual, June 2022).
- How to diagnose nanosecond network latencies in rich end-host stacks. Roni Haecki, Radhika Niranjan Mysore, Lalith Suresh, Gerd Zellweger, Bo Gan, Timothy Merrifield, Sujata Banerjee, Timothy Roscoe. Proceedings of the 19th USENIX Symposium on Networked Systems Design and Implementation (NSDI, Renton, USA, April 2022).
- Isolation in Rust: What is Missing? Anton Burtsev, Dan Appel, David Detweiler, Tianjiao Huang, Zhaofeng Li, Vikram Narayanan, Gerd Zellweger. Proceedings of the 11th Workshop on Programming Languages and Operating Systems (PLOS, Virtual, October 2021).
- NrOS: Effective Replication and Sharing in an Operating System. Ankit Bhardwaj, Chinmay Kulkarni, Reto Achermann, Irina Calciu, Sanidhya Kashyap, Ryan Stutsman, Amy Tai, Gerd Zellweger. Proceedings of the 15th USENIX Symposium on Operating Systems Design and Implementation (OSDI, Virtual, July 2021).
- RedLeaf: Isolation and Communication in a Safe Operating System. Vikram Narayanan, Tianjiao Huang, David Detweiler, Dan Appel, Zhaofeng Li, Gerd Zellweger, Anton Burtsev. Proceedings of the 14th USENIX Symposium on Operating Systems Design and Implementation (OSDI, Virtual, November 2020).
- IOctopus: outsmarting nonuniform DMA. Igor Smolyar, Alex Markuze, Boris Pismenny, Haggai Eran, Gerd Zellweger, Austin Bolen, Liran Liss, Adam Morrison, Dan Tsafrir. Proceedings of the 25th International Conference on Architectural Support for Programming Languages and Operating Systems (ASPLOS, Lausanne, CH, March 2020).
- So many performance events, so little time. Gerd Zellweger, Denny Lin, Timothy Roscoe. Proceedings of the 7th Asia-Pacific Workshop on Systems (APSys, Hong Kong, China, August 2016).
- Customized OS support for data processing. Jana Giceva, Gerd Zellweger, Gustavo Alonso, Timothy Roscoe. Proceedings of the 12th International Workshop on Data Management on New Hardware (DaMoN, San Francisco, USA, August 2016).
- Basslet: an OS runtime for parallel data processing. Jana Giceva, Gerd Zellweger, Gustavo Alonso, Timothy Roscoe. In the 2016 Workshop on Multicore and Rack-scale Systems (MaRS, London, UK, April 2016).
- SpaceJMP: Programming with Multiple Virtual Address Spaces. Izzat El Hajj, Alexander Merritt, Gerd Zellweger, Dejan Milojicic, Reto Achermann, Paolo Faraboschi, Wen-mei Hwu, Timothy Roscoe, Karsten Schwan. Proceedings of the 21th International Conference on Architectural Support for Programming Languages and Operating Systems (ASPLOS, Atlanta, USA, April 2016).
- Not Your Parents' Physical Address Space. Simon Gerber, Gerd Zellweger, Reto Achermann, Kornilios Kourtis, Timothy Roscoe, Dejan Milojicic. Proceedings of the 15th Workshop on Hot Topics in Operating Systems (HotOS, Kartause Ittingen, CH, May 2015).
- Decoupling Cores, Kernels, and Operating Systems. Gerd Zellweger, Simon Gerber, Reto Achermann, Kornilios Kourtis, Timothy Roscoe. Proceedings of the 11th USENIX Symposium on Operating Systems Design and Implementation (OSDI, Broomfield, USA, October 2014).