Running Theses
Application-Specific Hash-Table Optimization for Scalable Metadata-Management in the Linux Kernel
The rosebush hash table shows promising results for metadata management inside the kernel. Nevertheless, it is still slow compared to static data structures (struct page). Application-specific tailoring of rosebush could unleash its full potential.
- Typ
- Bachelorarbeit
- Status
- laufend
- Supervisors
- Alexander Halbuer
Daniel Lohmann - Project
- ParPerOS
- Bearbeiter
- Linus Wolkersdorfer
Developing a low-level NVMe driver for microbenchmarks
Development of a low-level open-source NVMe driver to enable microbenchmarks exploring performance characteristics of modern NVMe drives.
- Typ
- Bachelorarbeit
- Status
- laufend
- Supervisors
- Kenny Albes
Daniel Lohmann - Project
- ParPerOS
- Bearbeiter
- Ash Vollmer
Expanding the musl-libc Dynamic Loader by Morsel Support
Short summary of the thesis. State Problem and Goal.
- Typ
- Bachelorarbeit
- Status
- reserviert
- Supervisors
- Daniel Lohmann
Nils Fuhler - Project
- ParPerOS
Extending Shared Virtual-Memory Objects Across System Boundaries
CXL will bring shared, disaggregated memory with limited coherency. We will apply a previously developed software-based coherency protocol to an emulated CXL setup to evaluate its practicality.
- Typ
- Bachelorarbeit
- Status
- reserviert
- Supervisors
- Alexander Halbuer
Daniel Lohmann - Project
- ParPerOS
Leveraging Highly-Volatile Pages to Improve Memory Compaction Efficiency in Linux
Studies report that the majority of allocated pages become free within a timespan of seconds. Can a lazy compaction algorithm use this fact to achieve compact memory arrangement with less effort?
- Typ
- Bachelor-/Masterarbeit
- Status
- reserviert
- Supervisors
- Illia Ostapyshyn
Daniel Lohmann - Project
- DRAMaOS
LLZig: Highly-Parallel Page Frame Allocation in Zig
We want evaluate Zig as systems language by implementing a highly-parallel page frame allocator in Zig.
- Typ
- Bachelorarbeit
- Status
- laufend
- Supervisors
- Lars Wrenger
Daniel Lohmann - Project
- ParPerOS
RTOS as State Machine: Synthesis of Optimized Zephyr Embedded Systems
Static analysis of embedded systems can extract deep compile-time knowledge about the RTOS behavior at runtime. Using this knowledge, system calls in the Zephyr RTOS shall be specialized to transition functions on the system state, like a state machine.
- Typ
- Bachelorarbeit
- Status
- laufend
- Supervisors
- Andreas Kässens
Daniel Lohmann - Project
- AHA
- Bearbeiter
- Kyrylo Lipkovych
Shared Virtual-Memory Objects for ARM64
Morsels are currently limited to x86-based systems. To show the general applicability of the concept and to prepare Morsels for the use in heterogeneous systems, the support for an additonal microarchitecture is requried.
- Typ
- Bachelorarbeit
- Status
- laufend
- Supervisors
- Alexander Halbuer
Daniel Lohmann - Project
- ParPerOS
- Bearbeiter
- Philipp Bischoff
Shared Virtual-Memory Objects for Disaggregated Memory with Limited Coherency
CXL will bring shared, disaggregated memory with limited coherency. We will utilize the available coherency to build efficient synchronization for the remaining memory in software.
- Typ
- Bachelor-/Masterarbeit
- Status
- laufend
- Supervisors
- Alexander Halbuer
Daniel Lohmann - Project
- ParPerOS
- Bearbeiter
- Daria Richter
Sharing Memory Between Cores in Protected and Long Mode
Keep a CPU core in protected mode. Impelement support for x86_32 paging for secondary morsels and share a morsel with said core.
- Typ
- Bachelorarbeit
- Status
- reserviert
- Supervisors
- Daniel Lohmann
Nils Fuhler - Project
- ParPerOS
Size Does Matter: Utilizing Base and Huge Pages Simultaneously
Extend secondary morsels by support for multiple page sizes.
- Typ
- Bachelorarbeit
- Status
- reserviert
- Supervisors
- Daniel Lohmann
Nils Fuhler - Project
- ParPerOS
Systematic Comparison of Patch Development with HID-BPF and In-Kernel Patches
Compare finxing a broken HID device using HID-BPF and a kernel patch.
- Typ
- Bachelorarbeit
- Status
- reserviert
- Supervisors
- Daniel Lohmann
Nils Fuhler - Project
- AHA
To Drop or Not To Drop: Identifying Unused File Cache in Linux
Develop a mechanism to identify eviction candidates among unmapped file-cache pages in the Linux kernel.
- Typ
- Masterarbeit
- Status
- laufend
- Supervisors
- Illia Ostapyshyn
Daniel Lohmann - Project
- DRAMaOS
Transparent and Cooperative Merging and Splitting of Huge Pages
Morsels (our implementation of virtual-memory objects) currently support the mixing of different page sizes (4 KiB, 2 MiB, or 1 GiB), but the layout must be defined ahead of use. This thesis addresses dynamic reconfiguration with minimal service disruption, to improve adaptability to varying application needs.
- Typ
- Bachelorarbeit
- Status
- reserviert
- Supervisors
- Alexander Halbuer
Daniel Lohmann - Project
- ParPerOS
VLLFree: Improving Memory Reclamation by Giving the Linux Kernel Direct Access to Userspace Allocators
We want to give the kernel a better way to see which pages are used in processes so that it can reclaim unused memory more effectively.
- Typ
- Masterarbeit
- Status
- reserviert
- Supervisors
- Lars Wrenger
Daniel Lohmann - Project
- ParPerOS