I'm Lukas and I'm interested in research, computer networks and data systems.
- I'm currently a developer of the Hyrise in-memory database. I've done / am doing:
- Profile guided optimizations (PGO) and the binary optimization and layout tool (BOLT)
- More parallelism in the hash join, increasing throughput in industry benchmarks (TPCH) by up to 30%
- Reduce translation lookaside buffer (TLB) pressure in the radix partitioning
- I've written a paper on TCP Prague and presented it at ANRW'25
- Reproduced an issue with Prague's fallback to classic mode present in a previous paper
- Measured kernel variables using eBPF to uncover the underlying issue
- Evaluated Prague with the fallback patched in Mininet and open-sourced the experiment code
- I worked on Containernet (a fork of Mininet)
- Incorporated multiple research prototypes into the main codebase
- Evaluated federated learning of TinyML models in Containernet
- I participated in the ICPC world finals with two other HPI students as "Seems to be O(k!)"
- I help organize HPI camps for high school students, e.g. training camps for the federal competition in computer science (Bundeswettbewerb Informatik).