• Efficient Data Management with Heterogeneous Hardware
  • Utilizing CXL Memory For In-Memory Database Systems
  • Buffer Management / Memory Management
  • CPU Architectures
  • Memory Technologies & Interconnects

• Flexible I/O for Database Management Systems with xNVMe | CIDR 2026
  Emil Houlborg, Andreas Nicolaj Tietgen, Simon A. F. Lund, Marcel Weisgut, Tilmann Rabl, Javier González, Vivek Shah, Pınar Tözün
  Paper
• CXL Memory Performance for In-Memory Data Processing | VLDB 2025
  Marcel Weisgut, Daniel Ritter, Pınar Tözün, Lawrence Benson, Tilmann Rabl
  Paper | Poster | Slides
• CXL-Bench: Benchmarking Shared CXL Memory Access | ADMS @ VLDB 2025
  Marcel Weisgut, Daniel Ritter, Florian Schmeller, Pınar Tözün and Tilmann Rabl
  Paper | Slides
• TCO2: Analyzing the Carbon Footprint of Database Server Replacements (Demo) | VLDB 2025
  Marc Baeuerle, Thomas Bodner, Martin Boissier, Tilmann Rabl, Ricardo Salazar-Díaz, Florian Schmeller, Nils Strassenburg, Ilin Tolovski, Marcel Weisgut, Wang Yue
  Paper
• Fetch Me If You Can: Evaluating CPU Cache Prefetching and Its Reliability on High Latency Memory | DaMoN @ SIGMOD 2025
  Fabian Mahling, Marcel Weisgut, Tilmann Rabl
  Paper | Poster | Slides
• Towards Memory Disaggregation via NVLink C2C: Benchmarking CPU-Requested GPU Memory Access | HCDS @ ASPLOS/EuroSys 2025
  Felix Werner, Marcel Weisgut, Tilmann Rabl
  Paper | Slides
• Compression in Main Memory Database Systems: Cost and Performance Trade-Offs of Workload-Driven Data Encoding | BTW 2025
  Martin Boissier, Marcel Weisgut, Tilmann Rabl
  Paper
• A Case for Ecological Efficiency in Database Server Lifecycles | CIDR 2025
  Thomas Bodner, Martin Boissier, Tilmann Rabl, Ricardo Salazar-Díaz, Florian Schmeller, Nils Strassenburg, Ilin Tolovski, Marcel Weisgut, Wang Yue
  Paper | Slides
• A Three-Tier Buffer Manager Integrating CXL Device Memory for Database Systems | HardBD & Active @ ICDE 2024
  Niklas Riekenbrauck, Marcel Weisgut, Daniel Lindner, Tilmann Rabl
  Paper | Code
• What We Can Learn from Persistent Memory for CXL | NoDMC @ BTW 2023
  Lawrence Benson, Marcel Weisgut, Tilmann Rabl
  Extended abstract
• Workload-Driven Data Placement for Tierless In-Memory Database Systems | BTW 2023
  Ben Hurdelhey, Marcel Weisgut, Martin Boissier
  Paper
• Robust Index Selection for Stochastic Dynamic Workloads | SNCS 2023
  Rainer Schlosser, Marcel Weisgut, Leonardo Hubscher, Oliver Nordemann 
  Paper
• Separated Allocator Metadata in Disaggregated In-Memory Databases: Friend or Foe? | COMPSYS @ IPDPS 2022
  Marcel Weisgut, Daniel Ritter, Martin Boissier, Michael Perscheid
  Paper (awarded as best paper)
• Solver-Based Approaches for Robust Multi-Index Selection Problems with Reconfiguration Costs under Stochastic Dynamic Workloads | ICORES 2022
  Marcel Weisgut, Leonardo Hubscher, Oliver Nordemann, Rainer Schlosser
  Paper | Code
• Experimental Index Evaluation for Partial Indexes in Horizontally Partitioned In-Memory Databases | GvDB 2021
  Marcel Weisgut
  Paper | Code
• Model-Based Testing of Read Only Graph Queries | ICSTW 2020
  Leen Lambers, Sven Schneider, Marcel Weisgut
  Paper | Code

Master's Thesis Supervision

• Memory Access Performance Characterisation of Heterogeneous Memory, Clemens Schielicke, February 2026
• Flexible Data Placement for DuckDB (co-supervision of Pınar Tözün's students Emil Houlborg & Andreas Nicolaj Tietgen @ ITU Copenhagen), June 2025
• Evaluating State-of-the-Art Software Prefetching Approaches on Heterogeneous Memory, Fabian Mahling, Dezember 2024
• Benchmarking CPU-Requested GPU Memory Access, Felix Werner, September 2024
• Building a Configurable Benchmark for Remote Direct Memory Access, Leo Wendt, March 2024
• A Multi-Tier Buffer Manager with CXL-Attached Memory for In-Memory Database Management Systems, Niklas Riekenbrauck, August 2023
• Workload-Driven Data Placement for Capacity-Constrained Multi-Device In-Memory Database Systems, Ben Hurdelhey, September 2022
• Workload-Driven Query Optimization Using Data Dependencies, Daniel Lindner, March 2022

Master's Project Supervision

• Extend Your Own Database: Larger-Than-Memory Data Management for an In-Memory Database System (Winter 2022/23)

Lectures and Seminars

• Hardware-Conscious Data Processing (Summer 2023, Summer 2024, Summer 2025)
• Data Processing on Modern Hardware (Winter 2023/2024, Winter 2024/2025)
• Develop your own Database (Summer 2021, Summer 2022, Summer 2023)
• Big Data Labs (Winter 2023/2024)
• Big Data Systems (Winter 2024/2025)
• Trends and Concepts in the Software Industry I (Summer 2021)
• Lecture Series on Research Methods (Winter 2024/2025)
  • Lecture: Experimentally Evaluating System Performance (based on Kounev et al.'s Systems Benchmarking)

• CXL Memory Performance for In-Memory Data Processing @ EPFL, DSLAB (03/2026)
• CXL Memory Performance for In-Memory Data Processing @ Seagate Technology (11/2025)
• CXL Memory Performance for In-Memory Data Processing @ Huawei Data Intelligence and Architecture Innovation Summit (11/2025)
• Evaluating CXL Memory Performance @ SAP, TU Darmstadt, EPFL, and CWI (03/2025)
• Compute Express Link - An Introduction @ TU Darmstadt (02/2024), SAP (03/2024), and ITU Copenhagen (11/2024)
• Data Processing On Modern Hardware @ Huawei Memory Technologies Summit (06/2024)

• EDBT Demos 2026