Thesis

A New Toolbox for Scheduling Theory

Ziv Scully.
CMU Computer Science Technical Report Collection, 2022.
2022 SIGMETRICS Doctoral Disseration Award.
[thesis] [slides] [extended abstract]

Full Papers

Cost-Aware Bayesian Optimization via the Pandora’s Box Gittins Index

Qian Xie, Raul Astudillo, Peter Frazier, Ziv Scully, Alexander Terenin.
NeurIPS 2024.
2024 INFORMS Data Mining Best Paper Competition finalist.
[paper] [slides] [arXiv]

Strongly Tail-Optimal Scheduling in the Light-Tailed M/G/1

George Yu, Ziv Scully.
POMACS, 2024 (SIGMETRICS 2024 issue).
SIGMETRICS 2024 Best Paper Award.
[paper] [slides] [video] [extended abstract] [doi] [arXiv]

Heavy-Traffic Optimal Size- and State-Aware Dispatching

Runhan Xie, Isaac Grosof, Ziv Scully.
POMACS, 2024 (SIGMETRICS 2024 issue).
[paper] [extended abstract] [doi] [arXiv]

When Does the Gittins Policy Have Asymptotically Optimal Response Time Tail in the M/G/1?

Ziv Scully, Lucas van Kreveld.
Operations Research, 2024.
[paper] [doi] [arXiv]
Short version: Performance Evaluation Review, 2021 (MAMA 2021 issue). [paper] [doi]

Performance of the Gittins Policy in the G/G/1 and G/G/k, With and Without Setup Times

Yige Hong, Ziv Scully.
Performance Evaluation, 2024 (PERFORMANCE 2023 issue).
PERFORMANCE 2023 Best Paper Award.
[paper] [slides] [doi] [arXiv]
Short version: Performance Evaluation Review, 2023 (MAMA 2023 issue). [paper] [doi]

Optimal Scheduling in the Multiserver-job Model under Heavy Traffic

Isaac Grosof, Ziv Scully, Mor Harchol-Balter, Alan Scheller-Wolf.
POMACS, 2022 (SIGMETRICS 2023 issue).
[paper] [extended abstract] [doi] [arXiv]

On the Gittins Index for Multistage Jobs

Samuli Aalto, Ziv Scully.
Queueing Systems, 2022.
[paper] [doi]

Uniform Bounds for Scheduling with Job Size Estimates

Ziv Scully, Isaac Grosof, Michael Mitzenmacher.
ITCS 2022.
[paper] [slides] [video] [doi] [arXiv]

The Gittins Policy in the M/G/1 Queue

Ziv Scully, Mor Harchol-Balter.
WiOpt 2021.
[paper] [slides] [video] [doi] [arXiv]

Nudge: Stochastically Improving upon FCFS

Isaac Grosof, Kunhe Yang, Ziv Scully, Mor Harchol-Balter.
POMACS, 2021 (SIGMETRICS 2021 issue).
SIGMETRICS 2021 Best Paper Award.
[paper] [extended abstract] [doi] [arXiv]

The Gittins Policy Is Nearly Optimal in the M/G/k under Extremely General Conditions

Ziv Scully, Isaac Grosof, Mor Harchol-Balter.
POMACS, 2020 (SIGMETRICS 2021 issue).
2022 INFORMS George Nicholson Student Paper Competition winner.
[paper] [slides] [video] [extended abstract] [doi]

Optimal Multiserver Scheduling with Unknown Job Sizes in Heavy Traffic

Ziv Scully, Isaac Grosof, Mor Harchol-Balter.
Performance Evaluation, 2021 (PERFORMANCE 2020 issue).
[paper] [slides] [video] [arXiv] [extended abstract] [doi]
Short version: Performance Evaluation Review, 2020 (MAMA 2020 issue). [paper] [doi]

Characterizing Policies with Optimal Response Time Tails under Heavy-Tailed Job Sizes

Ziv Scully, Lucas van Kreveld, Onno Boxma, Jan-Pieter Dorsman, Adam Wierman.
POMACS, 2020 (SIGMETRICS 2020 issue).
[paper] [slides] [video] [extended abstract] [doi]

Simple Near-Optimal Scheduling for the M/G/1

Ziv Scully, Mor Harchol-Balter, Alan Scheller-Wolf.
POMACS, 2020 (SIGMETRICS 2020 issue).
SIGMETRICS 2020 Best Video Award.
[paper] [slides] [video] [extended abstract] [doi] [arXiv]
Short version: Performance Evaluation Review, 2019 (MAMA 2019 issue). [paper] [doi]

Mean Field Analysis of Join-Below-Threshold Load Balancing for Resource Sharing Servers

Illés Horváth, Ziv Scully, Benny Van Houdt.
POMACS, 2019 (SIGMETRICS 2020 issue).
[paper] [extended abstract] [doi]

Unfair Scheduling Patterns in NUMA Architectures

Naama Ben-David, Ziv Scully, Guy Blelloch.
PACT 2019.
[paper] [slides] [doi] [Zenodo] [GitHub] [IEEE]

Load Balancing Guardrails: Keeping Your Heavy Traffic on the Road to Low Response Times

Isaac Grosof, Ziv Scully, Mor Harchol-Balter.
POMACS, 2019 (SIGMETRICS 2019 issue).
SIGMETRICS 2019 Outstanding Student Paper Award.
[paper] [extended abstract] [doi] [arXiv]

The Markovian Price of Information

Anupam Gupta, Haotian Jiang, Ziv Scully, Sahil Singla.
IPCO 2019.
[paper] [extended abstract] [doi] [arXiv]

SRPT for Multiserver Systems

Isaac Grosof, Ziv Scully, Mor Harchol-Balter.
Performance Evaluation, 2018 (PERFORMANCE 2018 issue).
PERFORMANCE 2018 Best Student Paper Award.
[paper] [doi] [arXiv]
Short version: Performance Evaluation Review, 2018 (MAMA 2018 issue). [paper] [doi]

SOAP Bubbles: Robust Scheduling under Adversarial Noise

Ziv Scully, Mor Harchol-Balter.
Allerton Conference, 2018.
[paper] [doi]

SOAP: One Clean Analysis of All Age-Based Scheduling Policies

Ziv Scully, Mor Harchol-Balter, Alan Scheller-Wolf.
POMACS, 2018 (SIGMETRICS 2018 issue).
2018 INFORMS APS Best Student Paper Prize finalist.
[paper] [slides] [video] [extended abstract] [doi] [arXiv]

A Program Optimization for Automatic Database Result Caching

Ziv Scully, Adam Chlipala.
POPL 2017.
[paper] [slides] [doi]

Motors and Impossible Firing Patterns in the Parallel Chip-Firing Game

Tian-Yi Jiang, Ziv Scully, Yan X. Zhang.
SIDMA, 2015.
[paper] [doi] [arXiv]
Short version: DMTCS, 2014 (FPSAC 2014 issue). [paper] [doi]

Short Papers and Preprints

Local Hedging Solves Pandora’s Box Problems with Nonobligatory Inspection

Ziv Scully, Laura Doval.
arXiv, 2024.
[paper] [slides] [arXiv]

Stein’s Method and General Clocks: Diffusion Approximation of the G/G/1 Workload

Anton Braverman, Ziv Scully.
arXiv, 2024.
[paper] [arXiv]

A Gittins Policy for Optimizing Tail Latency

Amit Harlev, George Yu, Ziv Scully.
Performance Evaluation Review, 2024 (MAMA 2024 issue).
[paper]

Transform Analysis of Preemption Overhead in the M/G/1

Shefali Ramakrishna, Ziv Scully.
Performance Evaluation Review, 2024 (MAMA 2024 issue).
[paper]

The Role of Advanced Math in Teaching Performance Modeling

Ziv Scully.
TeaPACS 2023 (workshop at PERFORMANCE 2021).
[paper] [slides] [doi]

Reducing Heavy-Traffic Response Time with Asymmetric Dispatching

Runhan Xie, Ziv Scully.
Performance Evaluation Review, 2023 (MAMA 2023 issue).
[paper] [doi]

The Most Common Queueing Theory Questions Asked by Computer Systems Practitioners

Mor Harchol-Balter, Ziv Scully.
TeaPACS 2021 (workshop at PERFORMANCE 2021).
[paper] [doi]

How to Schedule Near-Optimally under Real-World Constraints

Ziv Scully, Mor Harchol-Balter.
arXiv, 2021.
[paper] [slides] [arXiv]

Bounding Mean Slowdown in Multiserver Systems

Ziv Scully.
Performance Evaluation Review, 2021 (MAMA 2021 issue).
[paper] [slides] [doi]

Open Problem—M/G/1 Scheduling with Preemption Delays

Ziv Scully.
Stochastic Systems, 2019.
[paper] [slides] [doi]

Optimal Scheduling and Exact Response Time Analysis for Multistage Jobs

Ziv Scully, Mor Harchol-Balter, Alan Scheller-Wolf.
arXiv, 2018.
[paper] [slides] [arXiv]

Optimally Scheduling Jobs with Multiple Tasks

Ziv Scully, Guy Blelloch, Mor Harchol-Balter, Alan Scheller-Wolf.
Performance Evaluation Review, 2017 (MAMA 2017 issue).
[paper] [slides] [doi]

Efficient Calculation of Determinants of Symbolic Matrices with Many Variables

Tanya Khovanova, Ziv Scully.
arXiv, 2013.
[paper] [arXiv]