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Lucene HNSW performance: A deep dive into the OS page cache Blog

Lucene HNSW performance: A deep dive into the OS page cache

Optimize Lucene HNSW vector search in OpenSearch with OS page cache and RAM tuning. Achieve…

Akhil PathivadaFebruary 9, 2026

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About
Platform
Community
Documentation
- Documentation Library
- Documentation Library II
  - OpenSearch BenchmarkMeasure performance metrics for your OpenSearch cluster.
  - ClientsInteract with OpenSearch from your application using language APIs.
Blog & News
- Blog
- Announcements
- Case Studies
- News
- Authors
Downloads

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Lucene HNSW performance: A deep dive into the OS page cache

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