Amy Ousterhout

About

I am an Assistant Professor in Computer Science and Engineering at the University of California, San Diego. My research interests are in operating systems and networks.

Prior to UCSD, I was a postdoctoral researcher in the NetSys Lab at UC Berkeley, where I worked with Scott Shenker and Sylvia Ratnasamy. I received my Ph.D. in 2019 from MIT CSAIL, advised by Hari Balakrishnan and Adam Belay, and I received a B.S.E. in Computer Science from Princeton University.

Research

My current research projects focus on designing efficient and high-performance systems for datacenter applications.

Support for microsecond-scale tasks:

Efficient CPU scheduling (Shenango, Caladan, and Scheduling Policies)
Memory management and zero-copy serialization (Cornflakes)
Leveraging new hardware features

Resource disaggregation:

Efficient and flexible far memory (Fastswap, Eden)

Students

Liam Arzola
Ani Canumalla
Linsong Guo

Teaching

CSE 120 - Principles of Computer Operating Systems, Spring 2023
CSE 221 - Graduate Operating Systems, Winter 2024, Fall 2024
CSE 291 - Operating Systems in Datacenters, Fall 2022, Fall 2023
CSE 294 - Systems and Networking Seminar, Fall 2023

Publications

Eden: Developer-Friendly Application-Integrated Far Memory
Anil Yelam, Stewart Grant, Saarth Deshpande, Nadav Amit, Radhika Niranjan Mysore, Amy Ousterhout, Marcos K. Aguilera, Alex C. Snoeren
NSDI 2025 (to appear)

Efficient Microsecond-scale Blind Scheduling with Tiny Quanta
Zhihong Luo, Sam Son, Dev Bali, Emmanuel Amaro, Amy Ousterhout, Sylvia Ratnasamy, Scott Shenker
ASPLOS 2024

Cornflakes: Zero-Copy Serialization for Microsecond-Scale Networking
Deepti Raghavan, Shreya Ravi, Gina Yuan, Pratiksha Thaker, Sanjari Srivastava, Micah Murray, Pedro Henrique Penna, Amy Ousterhout, Philip Levis, Matei Zaharia, Irene Zhang
SOSP 2023

Limited Access: The Truth Behind Far Memory
Anil Yelam, Stewart Grant, Enze Liu, Radhika Niranjan Mysore, Marcos K Aguilera, Amy Ousterhout, Alex C Snoeren
WORDS 2023

Out of Hand for Hardware? Within Reach for Software!
Zhihong Luo, Silvery Fu, Emmanuel Amaro, Amy Ousterhout, Sylvia Ratnasamy, Scott Shenker
HotOS 2023

Zed: Leveraging Data Types to Process Eclectic Data
Amy Ousterhout, Steve McCanne, Henri Dubois-Ferriere, Silvery Fu, Sylvia Ratnasamy, Noah Treuhaft
CIDR 2023

Efficient Scheduling Policies for Microsecond-Scale Tasks
Sarah McClure, Amy Ousterhout, Scott Shenker, Sylvia Ratnasamy
NSDI 2022

Caladan: Mitigating Interference at Microsecond Timescales
Joshua Fried, Zhenyuan Ruan, Amy Ousterhout, Adam Belay
OSDI 2020

Remote Memory Calls
Emmanuel Amaro, Zhihong Luo, Amy Ousterhout, Arvind Krishnamurthy, Aurojit Panda, Sylvia Ratnasamy, Scott Shenker
HotNets 2020

Can Far Memory Improve Job Throughput?
Emmanuel Amaro, Christopher Branner-Augmon, Zhihong Luo, Amy Ousterhout, Marcos K. Aguilera, Aurojit Panda, Sylvia Ratnasamy, Scott Shenker
EuroSys 2020

Just In Time Delivery: Leveraging Operating Systems Knowledge for Better Datacenter Congestion Control
Amy Ousterhout, Adam Belay, Irene Zhang
HotCloud 2019

Shenango: Achieving High CPU Efficiency for Latency-sensitive Datacenter Workloads
Amy Ousterhout, Joshua Fried, Jonathan Behrens, Adam Belay, Hari Balakrishnan
NSDI 2019
slides code

Flexplane: An Experimentation Platform for Resource Management in Datacenters
Amy Ousterhout, Jonathan Perry, Hari Balakrishnan, Petr Lapukhov
NSDI 2017
slides code

Fastpass: A Centralized "Zero-Queue" Datacenter Network
Jonathan Perry, Amy Ousterhout, Hari Balakrishnan, Devavrat Shah, Hans Fugal
SIGCOMM 2014

Service

SOSP Program Committee - 2024
OSDI Program Committee - 2024
NSDI Program Committee - 2023, 2024
HotOS Program Committee - 2023
ATC Program Committee - 2021, 2023