Theodoros (Theo) Michailidis

Office 3256

3235 Voigt Dr, La Jolla

San Diego, CA 92093

I am a final year Ph.D. Candidate at the University of California, San Diego. My advisor is Prof. Jishen Zhao, and I am also affiliated with the Non-Volatile Systems Lab, led by Prof. Steven Swanson. My research interests lie at the intersection of novel memory and storage technologies, operating systems, and datacenter systems. I am currently exploring systems techniques for memory intensive applications running in CXL-enabled cloud systems.

I received my BSc and MSc on Computer Science from the University of Athens, Greece.

Publications

2026

ATC (To appear)

Building Memory Efficient Key-Value Stores in the CXL Era

Theodore Michailidis, Steven Swanson, and Jishen Zhao

2025

arXiv

The Hitchhiker’s Guide to Programming and Optimizing Cache Coherent Heterogeneous Systems: CXL, NVLink-C2C, and AMD Infinity Fabric

Zixuan Wang, Suyash Mahar, Luyi Li, and 9 more authors

2025

Bib PDF

@misc{wang2025hitchhikersguideprogrammingoptimizing,
  title = {The Hitchhiker's Guide to Programming and Optimizing Cache Coherent Heterogeneous Systems: CXL, NVLink-C2C, and AMD Infinity Fabric},
  author = {Wang, Zixuan and Mahar, Suyash and Li, Luyi and Park, Jangseon and Kim, Jinpyo and Michailidis, Theodore and Pan, Yue and Shen, Mingyao and Rosing, Tajana and Tullsen, Dean and Swanson, Steven and Zhao, Jishen},
  year = {2025},
  eprint = {2411.02814},
  archiveprefix = {arXiv},
  primaryclass = {cs.PF},
  url = {https://arxiv.org/abs/2411.02814},
}

IPDPS

TOSS: Tiering of Serverless Snapshots for Memory-Efficient Serverless Computing

Theodore Michailidis, Juno Kim, Linsong Guo, and 2 more authors

In 2025 IEEE International Parallel and Distributed Processing Symposium (IPDPS), 2025

Bib PDF Slides

@inproceedings{11078477,
  author = {Michailidis, Theodore and Kim, Juno and Guo, Linsong and Swanson, Steven and Zhao, Jishen},
  booktitle = {2025 IEEE International Parallel and Distributed Processing Symposium (IPDPS)},
  title = {TOSS: Tiering of Serverless Snapshots for Memory-Efficient Serverless Computing},
  year = {2025},
  volume = {},
  number = {},
  pages = {2-14},
  keywords = {Distributed processing;Costs;Accuracy;Memory management;Serverless computing;Random access memory;Optimization;memory systems;serverless;tiered memory},
  doi = {10.1109/IPDPS64566.2025.00010},
}

IEEE ToC

SVDE: Serverless Framework for Low-Latency Video Analytic Queries With Hardware Disaggregation

Pingyi Huo, Theodore Michailidis, Yi Zheng, and 4 more authors

IEEE Transactions on Computers, 2025

Best Paper Award

Bib PDF

@article{10998945,
  author = {Huo, Pingyi and Michailidis, Theodore and Zheng, Yi and Panigrahi, Prapti and Maeng, Kiwan and Zhao, Jishen and Narayanan, Vijaykrishnan},
  journal = {IEEE Transactions on Computers},
  title = {SVDE: Serverless Framework for Low-Latency Video Analytic Queries With Hardware Disaggregation},
  year = {2025},
  volume = {74},
  number = {8},
  pages = {2717-2730},
  keywords = {Visual analytics;Pipelines;Encoding;Hardware;Indexes;Training;Data mining;Computers;Artificial intelligence;Serverless computing;Serverless computing;video processing;configuration tuning;decision tree},
  doi = {10.1109/TC.2025.3569173},
}

2022

APSys

PMShifter: Enabling Persistent Memory Fluidness in Linux

Theodore Michailidis, Steven Swanson, and Jishen Zhao

In Proceedings of the 13th ACM SIGOPS Asia-Pacific Workshop on Systems, 2022

Bib PDF Slides

@inproceedings{10.1145/3546591.3547523,
  author = {Michailidis, Theodore and Swanson, Steven and Zhao, Jishen},
  title = {{PMShifter: Enabling Persistent Memory Fluidness in Linux}},
  year = {2022},
  isbn = {9781450394413},
  publisher = {Association for Computing Machinery},
  address = {New York, NY, USA},
  url = {https://doi.org/10.1145/3546591.3547523},
  doi = {10.1145/3546591.3547523},
  booktitle = {Proceedings of the 13th ACM SIGOPS Asia-Pacific Workshop on Systems},
  pages = {1–8},
  numpages = {8},
  keywords = {non-volatile memory, operating systems, persistent memory, memory management},
  location = {Virtual Event, Singapore},
  series = {APSys '22}
}

2020

MICRO

Characterizing and Modeling Non-Volatile Memory Systems

Zixuan Wang, Xiao Liu, Jian Yang, and 3 more authors

In 2020 53rd Annual IEEE/ACM International Symposium on Microarchitecture (MICRO), 2020

IEEE Micro Top Picks 2021

Bib PDF

@inproceedings{9251957,
  author = {Wang, Zixuan and Liu, Xiao and Yang, Jian and Michailidis, Theodore and Swanson, Steven and Zhao, Jishen},
  booktitle = {2020 53rd Annual IEEE/ACM International Symposium on Microarchitecture (MICRO)},
  title = {{Characterizing and Modeling Non-Volatile Memory Systems}},
  year = {2020},
  pages = {496-508},
  doi = {10.1109/MICRO50266.2020.00049}
}

2019

SYSTOR

MEGA: Overcoming Traditional Problems with OS Huge Page Management

Theodore Michailidis, Alex Delis, and Mema Roussopoulos

In Proceedings of the 12th ACM International Conference on Systems and Storage, 2019

Bib PDF

@inproceedings{10.1145/3319647.3325839,
  author = {Michailidis, Theodore and Delis, Alex and Roussopoulos, Mema},
  title = {MEGA: {Overcoming Traditional Problems with OS Huge Page Management}},
  year = {2019},
  isbn = {9781450367493},
  publisher = {Association for Computing Machinery},
  address = {New York, NY, USA},
  url = {https://doi.org/10.1145/3319647.3325839},
  doi = {10.1145/3319647.3325839},
  booktitle = {Proceedings of the 12th ACM International Conference on Systems and Storage},
  pages = {121–131},
  numpages = {11},
  keywords = {memory compaction, huge pages, address translation},
  location = {Haifa, Israel},
  series = {SYSTOR '19}
}