6 papers
Spatial Analysis on Value-Based Quadtrees of Rasterized Vector Data
Diana Baumann, Nils Japke, Tim C. Rese +1
Mobility data science offers insights into the complex interconnections of spatial data of moving objects and their surroundings, often based on a combination of vector and raster…
Duet instrumentation: An Agentic Approach to Improving Sensitivity in Cloud Service Benchmarking
Sebastian Koch, Nils Japke, David Bermbach
Continuous cloud service performance benchmarking is essential for detecting performance bugs early before deploying them to production. However, detecting performance regressions…
GeoBenchr: An Application-Centric Benchmarking Suite for Spatiotemporal Database Platforms
Tim C. Rese, Nils Japke, Diana Baumann +2
The rapid growth of spatiotemporal data volumes needs to be handled by database systems capable of efficiently managing and querying such data. Existing systems such as PostGIS, Sp…
Investigating the Impact of Isolation on Synchronized Benchmarks
Nils Japke, Furat Hamdan, Diana Baumann +1
Benchmarking in cloud environments suffers from performance variability from multi-tenant resource contention. Duet benchmarking mitigates this by running two workload versions con…
Towards an Optimized Benchmarking Platform for CI/CD Pipelines
Nils Japke, Sebastian Koch, Helmut Lukasczyk +1
Performance regressions in large-scale software systems can lead to substantial resource inefficiencies, making their early detection critical. Frequent benchmarking is essential f…
OpTime: Statically Reducing the Execution Time of Microbenchmark Suites Using Stability Metrics
Nils Japke, Martin Grambow, Christoph Laaber +1
Performance regressions have a tremendous impact on the quality of software. One way to catch regressions before they reach production is executing performance tests before deploym…