Prof. Dr. Tilmann Rabl

Marcel Weisgut

Ph.D. Student
Room: F-1.05
Phone: +49-(0)331 5509-280
E-Mail: marcel.weisgut(at)hpi.de
Profiles: LinkedIn | GitHub | Google Scholar | dblp

Research Interest

  • Data Management on Modern Memory and Storage Technologies
  • Cache-Coherent Interconnects
  • Compute Express Link (CXL)
  • Memory Disaggregation


  • 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
  • Robust Index Selection for Stochastic Dynamic Workloads | SNCS 2023
    Rainer Schlosser, Marcel Weisgut, Leonardo Hubscher, Oliver Nordemann 
  • 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

  • TBD, Fabian Mahling
  • Benchmarking GPU Memory Access, Felix Werner (ongoing)
  • 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

Lectures and Seminars


  • Compute Express Link - An Introduction @ TU Darmstadt (2024)