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apache / lucene / c7a7d48d657f29ba43ea87d539d05cff07dc67ad
commitc7a7d48d657f29ba43ea87d539d05cff07dc67ad[log] [tgz]
authorArmin Braun <me@obrown.io>Fri Jun 07 13:27:10 2024 +0200
committerGitHub <noreply@github.com>Fri Jun 07 13:27:10 2024 +0200
treee0461424de9d0fb844769e84935592c32104402c
parent9f8e886702dff3f12811bfaca7e0430e8de4387e [diff]
Reduce the heap use of BKDReader instances (#13464)

We consume a lot of memory for the `indexIn` slices. If `indexIn` is of
type `MemorySegmentIndexInput` the overhead of keeping loads of slices
around just for cloning is far higher than the extra 12b per reader this
adds (the slice description alone often costs a lot).
In a number of Elasticsearch example uses with high segment counts I
investigated, this change would save up to O(GB) of heap.
1 file changed
tree: e0461424de9d0fb844769e84935592c32104402c
  1. .github/
  2. buildSrc/
  3. dev-docs/
  4. dev-tools/
  5. gradle/
  6. help/
  7. lucene/
  8. .asf.yaml
  9. .dir-locals.el
  10. .git-blame-ignore-revs
  11. .gitattributes
  12. .gitignore
  13. .hgignore
  14. .lift.toml
  15. build.gradle
  16. CONTRIBUTING.md
  17. gradlew
  18. gradlew.bat
  19. LICENSE.txt
  20. NOTICE.txt
  21. README.md
  22. settings.gradle
  23. versions.lock
  24. versions.props
README.md

Apache Lucene

Lucene Logo

Apache Lucene is a high-performance, full-featured text search engine library written in Java.

Build Status

Online Documentation

This README file only contains basic setup instructions. For more comprehensive documentation, visit:

Building

Basic steps:

  1. Install OpenJDK 21.
  2. Clone Lucene's git repository (or download the source distribution).
  3. 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