~/talk

Repeatable Benchmarking: An Exploration of OpenSearch Vs Elasticsearch

Talkat OpenSearchCon North America 2025 · 2025-09-08..09-10· [testing]
linkedin:evandowning
slides:none on file

Compares OpenSearch v2.17 and Elasticsearch v8.15 using an open, automated framework running OpenSearch Benchmark on AWS via GitHub Actions, deploying fresh EC2 instances per test and running five daily runs (first as warmup). Reports 1500x faster on date histogram for OpenSearch and better text-query latency for Elasticsearch, measures 90th percentile service times across Big5, NYC Taxis, PMC, NOAA, Vectorsearch with thousands to hundreds of thousands samples, uses p‑value and power checks, exposes configuration experiments and reproducible outliers.

AI-written summary · about

  1. 0:00OpenSearch vs Elasticsearch benchmarking
  2. 1:48Automated repeatable benchmarking
  3. 3:35Benchmarking methodology and setup
  4. 6:03Live benchmarking demo
  5. 8:54Recent performance improvements
  6. 10:20Future search engine support
  7. 11:37Q&A
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