OpenSearchCon Europe 2025

Performance testing OpenSearch clusters requires careful consideration of numerous variables and methodologies. While OpenSearch Benchmark (OSB) and its associated workloads provide powerful tools for cluster evaluation, many users struggle to implement effective testing strategies that yield meaningful, reproducible results.

In this comprehensive session, we'll dive more deeply into OSB best practices, moving beyond basic benchmarking to explore topics such as how to select and size appropriate workloads, handle common pitfalls and leverage more advanced features like custom workloads and gradual ramp-up to simulate realistic production scenarios. An understanding of critical aspects that are often overlooked such as warm-up periods, proper load generator sizing and techniques to analyze statistical significance will help you obtain actionable insights into how your OpenSearch cluster scales and performs under various operational conditions.

Whether you're a DevOps engineer, database administrator, or performance analyst, this talk will equip you with the tools and methodologies needed to unlock the full potential of your OpenSearch deployment.