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fe0278e36e
This changes HnswGraphBuilder to re-use the same candidates queues for adding nodes by allocating them in the Builder instance. This saves about 2.5% of build time and takes memory allocations of NQ long[] from 25% of total to 0%. JFR runs are attached. The difference from the first attempt (which actually made things slower for some graphs) is that it preserves the original code's behavior of using a 1-sized queue for the search in the levels above where the node actually gets added. * Re-use NeighborQueue during build's search * improve javadoc for OnHeapHnswGraphSearcher * assert that results parameter is minheap as expected * update CHANGES
Apache Lucene
Apache Lucene is a high-performance, full-featured text search engine library written in Java.
Online Documentation
This README file only contains basic setup instructions. For more comprehensive documentation, visit:
- Latest Releases: https://lucene.apache.org/core/documentation.html
- Nightly: https://ci-builds.apache.org/job/Lucene/job/Lucene-Artifacts-main/javadoc/
- Build System Documentation: help/
- Developer Documentation: dev-docs/
- Migration Guide: lucene/MIGRATE.md
Building
Basic steps:
- Install OpenJDK 17 or 18.
- Clone Lucene's git repository (or download the source distribution).
- Run gradle launcher script (
gradlew).
We'll assume that you know how to get and set up the JDK - if you don't, then we suggest starting at https://jdk.java.net/ and learning more about Java, before returning to this README.
See Contributing Guide for details.
Contributing
Bug fixes, improvements and new features are always welcome! Please review the Contributing to Lucene Guide for information on contributing.
Discussion and Support
- Users Mailing List
- Developers Mailing List
- IRC:
#luceneand#lucene-devon freenode.net