Projects

ParPerOS: Parallel Persistency OS (DFG: LO 1719/8-1 and DI 2840/2-1)

In ParPerOS, we examine new abstractions for unified but efficient and optionally crash-consistent low-level memory management for data objects in heterogeneous memory systems that consist of volatile, persistent, distributed and other types of main memory.

Publications

ARCS Conference Best Paper Award
TOSTING: Investigating Total Store Ordering on ARM

Lars Wrenger, Dominik Töllner, Daniel LohmannProceedings of the 36th GI/ITG International Conference on Architecture of Computing Systems (ARCS 23)Springer International Publishing2023Best Paper Award.
PDF Details Slides 10.1007/978-3-031-42785-5_10 [BibTex]

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BibTex Entry

@inproceedings{wrenger:23:arcs,
location = {Athens, Greece},
author = {Wrenger, Lars and Töllner, Dominik and Lohmann, Daniel},
booktitle = {Proceedings of the 36th GI/ITG International Conference on Architecture of Computing Systems (ARCS 23)},
doi = {10.1007/978-3-031-42785-5_10},
entrysubtype = {Conference},
month = {July},
publisher = {Springer International Publishing},
title = {{TOSTING}: Investigating Total Store Ordering on ARM},
year = {2023},
}

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USENIX Conference A Distinguished Artifact Award
LLFree: Scalable and Optionally-Persistent Page-Frame Allocation

Lars Wrenger, Florian Rommel, Alexander Halbuer, Christian Dietrich, Daniel Lohmann2023 USENIX Annual Technical Conference (USENIX '23)USENIX Association2023Distinguished Artifact Award.
PDF Details Slides [BibTex]

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BibTex Entry

@inproceedings{wrenger:23:atc,
location = {Boston, MA},
author = {Wrenger, Lars and Rommel, Florian and Halbuer, Alexander and Dietrich, Christian and Lohmann, Daniel},
booktitle = {2023 USENIX Annual Technical Conference (USENIX '23)},
entrysubtype = {Conference},
isbn = {978-1-939133-35-9},
month = {jul},
pages = {897–914},
publisher = {USENIX Association},
title = {{LLFree}: Scalable and {Optionally-Persistent} {Page-Frame} Allocation},
url = {https://www.usenix.org/conference/atc23/presentation/wrenger},
year = {2023},
}

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DIMES Workshop Best Paper Award
The New Costs of Physical Memory Fragmentation

Alexander Halbuer, Illia Ostapyshyn, Lukas Steiner, Lars Wrenger, Matthias Jung, Christian Dietrich, Daniel LohmannProceedings of the 2nd Workshop on Disruptive Memory Systems (SOSP-DIMES '24)Association for Computing Machinery2024Best Paper Award.
PDF Details 10.1145/3698783.3699378 [BibTex]

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BibTex Entry

@inproceedings{halbuer:24:dimes,
author = {Alexander Halbuer and Illia Ostapyshyn and Lukas Steiner and Lars Wrenger and Matthias Jung and Christian Dietrich and Daniel Lohmann},
booktitle = {Proceedings of the 2nd Workshop on Disruptive Memory Systems (SOSP-DIMES '24)},
doi = {10.1145/3698783.3699378},
entrysubtype = {Workshop},
location = {Austin, Texas, USA},
publisher = {Association for Computing Machinery},
title = {The New Costs of Physical Memory Fragmentation},
year = {2024},
}

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JSA Journal
Analyzing the memory ordering models of the Apple M1

Lars Wrenger, Dominik Töllner, Daniel LohmannJournal of Systems Architecture1492024.
PDF 10.1016/j.sysarc.2024.103102 [BibTex]

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BibTex Entry

@article{wrenger:24:jsa,
author = {Lars Wrenger and Dominik Töllner and Daniel Lohmann},
date = {2024-04},
doi = {10.1016/j.sysarc.2024.103102},
entrysubtype = {Journal},
issn = {1383-7621},
journaltitle = {Journal of Systems Architecture},
keywords = {TSO, Memory ordering, Apple M1, ARM},
month = {apr},
pages = {103102},
title = {Analyzing the memory ordering models of the Apple M1},
url = {https://www.sciencedirect.com/science/article/pii/S1383762124000390},
volume = {149},
year = {2024},
}

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EuroSys Conference A
HyperAlloc: Efficient VM Memory De/Inflation via Hypervisor-Shared Page-Frame Allocators

Lars Wrenger, Kenny Albes, Marco Wurps, Christian Dietrich, Daniel LohmannProceedings of the Twentieth European Conference on Computer SystemsACM2025.
PDF Details 10.1145/3689031.3717484 [BibTex]

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BibTex Entry

@inproceedings{wrenger:25:eurosys,
location = {New York, NY, USA},
author = {Lars Wrenger and Kenny Albes and Marco Wurps and Christian Dietrich and Daniel Lohmann},
booktitle = {Proceedings of the Twentieth European Conference on Computer Systems},
doi = {10.1145/3689031.3717484},
entrysubtype = {Conference},
isbn = {9798400711961},
keywords = {Allocators, Ballooning, Overcommitment, Virtual Machines},
location = {Rotterdam, Netherlands},
numpages = {18},
organization = {Association for Computing Machinery},
pages = {702–719},
publisher = {ACM},
series = {EuroSys '25},
title = {HyperAlloc: Efficient VM Memory De/Inflation via Hypervisor-Shared Page-Frame Allocators},
url = {https://doi.org/10.1145/3689031.3717484},
year = {2025},
}

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OSDI Conference A*
MettEagle: Costs and Benefits of Implementing Containers on Microkernels

Till Miemietz, Matthias Hille, Viktor Reusch, Lars Wrenger, Jana Eisoldt, Jan Klötzke, Max Kurze, Adam Lackorzynski, Michael Roitzsch, Hermann Härtig19th Symposium on Operating System Design and Implementation (OSDI '25)2025.
PDF [BibTex]

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BibTex Entry

@inproceedings{miemietz:25:osdi,
location = {Boston, MA},
author = {Till Miemietz and Matthias Hille and Viktor Reusch and Lars Wrenger and Jana Eisoldt and Jan Klötzke and Max Kurze and Adam Lackorzynski and Michael Roitzsch and Hermann Härtig},
booktitle = {19th Symposium on Operating System Design and Implementation (OSDI '25)},
entrysubtype = {Conference},
month = {July},
title = {MettEagle: Costs and Benefits of Implementing Containers on Microkernels},
year = {2025},
}

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