Jonggyu Park
Jonggyu Park
jonggyu@cs.washington.edu
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I'm Jonggyu Park, a Post-doc researcher at the University of Washington, advised by Tom Anderson and Simon Peter. My research interests include operating systems, storage, virtualization, and now datacenter power management.
I received my B.S., M.S. (advised by Euiseong Seo), and Ph.D. (advised by Young Ik Eom) from Sungkyunkwan University in 2014, 2016, and 2022, respectively.
Research
My research to date has focused on developing fairness-oriented high-performance computer systems for consolidated environments. My representative projects include 1) a user-space storage management tool, which efficiently eliminates filesystem fragmentation, 2) new synchronization primitives that embody a lock scheduling feature with understanding the CPU architecture, and 3) a new I/O cache design that provides application-level I/O fairness. Currently, I am dedicated to the design of power-adaptive data center infrastructure.
Skill/Experience
1. SSD internals - [C3, C4, J4]2. Linux kernel I/O stack (block layer, I/O schedulers, filesystems [ext4, f2fs, vfs], system calls)
- [C1, J2, C3, C4, J4]3. I/O Cache (bcache, page cache) - [C2, J3]4. Synchronization (mutex, spinlock, etc.) both inside the kernel and on the userspace
- [C2, J3, C5]5. Cgroups v1 and v2 (CPU and I/O subsystems) - [J1, C2, J3, C4]6. Docker container - [C2, J3, C4]
1. SSD internals - [C3, C4, J4]2. Linux kernel I/O stack (block layer, I/O schedulers, filesystems [ext4, f2fs, vfs], system calls)
- [C1, J2, C3, C4, J4]3. I/O Cache (bcache, page cache) - [C2, J3]4. Synchronization (mutex, spinlock, etc.) both inside the kernel and on the userspace
- [C2, J3, C5]5. Cgroups v1 and v2 (CPU and I/O subsystems) - [J1, C2, J3, C4]6. Docker container - [C2, J3, C4]
Selected Publications (For a complete list of my publications, please refer to my curriculum vitae)
[C5] Locks as a Resource: Fairly Scheduling Lock Occupation with CFL
Jonggyu Park and Young Ik Eom
In Proceedings of the 29th ACM SIGPLAN Annual Symposium on Principles and Practice of Parallel Programming (ACM PPoPP 2024)
[J4] Filesystem Fragmentation on Modern Storage Systems
Jonggyu Park and Young Ik Eom
ACM Transactions on Computer Systems, 2023
[C4] File Fragmentation from the Perspective of I/O Control
Jonggyu Park and Young Ik Eom
In Proceedings of the 14th ACM Workshop on Hot Topics in Storage and File Systems (ACM HotStorage 2022)
[J3] Weight-Aware Cache for Application-Level Proportional I/O Sharing
Jonggyu Park and Young Ik Eom
IEEE Transactions on Computers, 2021
[C3] FragPicker: A New Defragmentation Tool for Modern Storage Devices
Jonggyu Park and Young Ik Eom
In Proceedings of the 28th ACM Symposium on Operating Systems Principles (ACM SOSP 2021)
[C2] Towards Application-level I/O Proportionality with a Weight-aware Page Cache Management
Jonggyu Park, Kwonje Oh, and Young Ik Eom
In Proceedings of the 36th International Conference on Massive Storage Systems and Technology (MSST 2020)
[J2] Anti-Aging LFS: Self-Defragmentation With Fragmentation-Aware Cleaning
Jonggyu Park and Young Ik Eom
IEEE ACCESS, 2020
[J1] URS: User-based Resource Scheduling for Multi-User Surface Computing Systems
Jonggyu Park and Young Ik Eom
IEEE Transactions on Consumer Electronics, 2019
[C1] File Defragmentation Scheme for a Log-Structured File System
Jonggyu Park, Dong Hyun Kang, and Young Ik Eom
In Proceedings of the 7th ACM Asia-Pacific Workshop on Systems (ACM APSys 2016)
Services
External Program Committee, USENIX Annual Technical Conference (USENIX ATC), 2024
Program Committee, USENIX Symposium on Networked Systems Design and Implementation (USENIX NSDI), 2024 Fall
Scribe, USENIX Symposium on Networked Systems Design and Implementation (USENIX NSDI), 2024 Spring
Publication Chair, ACM Workshop on Sustainable Computer Systems (ACM HotCarbon), 2023
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