Daniel Habicht, M.Sc.
- Research Staff Member
- Room: 414
CS 50.19 - InformatiKOM I - daniel habicht ∂does-not-exist.kit edu
- Adenauerring 12
76131 Karlsruhe
CXL-Based Hybrid SSDs
CXL-based hybrid SSDs feature a synchronous load/store interface alongside the asynchronous block interface used with conventional SSDs. I work on system software support for hybrid SSDs with an focus on resource management and operating system abstractions.
Memory Management for CXL-Based Memory Architectures
CXL enables heterogeneous memory architectures composed of diverse memory devices with different performance characteristics. When memory devices are oversaturated with requests, the access latency increases exponentially which consequently leads to prolonged CPU stalls. I work on bandwidth management for such architectures that aims to avoid overload scenarios while providing fair resource allocation and a practical trade-off between throughput and tail latency.
| Author | Title | Source |
|---|---|---|
Yussuf Khalil, Daniel Habicht, Pascal Ellinger, Frank Bellosa, Javier González, Adam Manzanares, Vivek Shah |
Transparent DAX Mappings: Towards Automatic Kernel Bypass with CXL-Based Hybrid SSDs | DIMES'25, 3rd Workshop on Disruptive Memory Systems, Seoul, Korea, October 13, 2025 |
Daniel Habicht, Yussuf Khalil, Lukas Werling, Thorsten Gröninger, Frank Bellosa |
Fundamental OS Design Considerations for CXL-based Hybrid SSDs | DIMES'24, 2nd Workshop on Disruptive Memory Systems, Austin, TX, USA, November 2, 2024 |
| Author | Title | Source |
|---|---|---|
Yussuf Khalil, Daniel Habicht, Pascal Ellinger, Frank Bellosa, Javier González, Adam Manzanares, Vivek Shah |
Transparent DAX Mappings: Towards Automatic Kernel Bypass with CXL-Based Hybrid SSDs | SOSP'25, ACM SIGOPS 31st Symposium on Operating Systems Principles, Seoul, Korea, October 13 - 16, 2025 |
Daniel Habicht, Yussuf Khalil, Lukas Werling, Thorsten Gröninger, Frank Bellosa |
Fundamental OS Design Considerations for CXL-based Hybrid SSDs | SOSP'24, ACM SIGOPS 30th Symposium on Operating Systems Principles, Austin, TX, USA, November 4 - 6, 2024 |
| Semester | Title | Type | Lecturer |
|---|---|---|---|
| WT 26/27 | Operating System Tutorials | Tutorial | |
| WT 26/27 | Linux Internals Proseminar | Proseminar | |
| ST 2026 | Linux Internals Proseminar | Proseminar | |
| WT 25/26 | Linux Internals Proseminar | Proseminar | |
| WT 25/26 | Operating Systems Tutorials | Tutorial | |
| SS 2025 | Practical Course Operating System Development | Lab | |
| SS 2025 | Linux Internals Proseminar | Proseminar | |
| WS 24/25 | Linux Internals Proseminar | Proseminar | |
| WS 24/25 | Operating System Tutorials | Tutorial | Prof. Dr.-Ing. Frank Bellosa
|
| Author | Title | Type | Date | Advisor |
|---|---|---|---|---|
| David Besau | Analyzing Application Writeback Behavior | Bachelor Thesis | 03.04.2025 | Prof. Dr. Frank Bellosa Daniel Habicht Yussuf Khalil |
| Linus Kämmerer | Hardware-Assisted Memory Bandwidth Management for CXL-based Memory Devices | Master Thesis | 29.10.2025 | Prof. Dr. Frank Bellosa Daniel Habicht Yussuf Khalil |
| Daniel John Dietzler | Transparent DAX Upgrades for CXL-based hybrid SSDs | Bachelor Thesis | 13.10.2025 | Prof. Dr. Frank Bellosa Daniel Habicht |