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Update CHANGES after #13267.

This commit is contained in:
Adrien Grand 2024-04-05 21:51:24 +02:00
parent 1b98db5ca1
commit 4c843fc9ae
1 changed files with 6 additions and 3 deletions
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lucene/CHANGES.txt
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@ -224,9 +224,12 @@ New Features
* GITHUB#12915: Add new token filters for Japanese sutegana (捨て仮名). This introduces JapaneseHiraganaUppercaseFilter
and JapaneseKatakanaUppercaseFilter. (Dai Sugimori)
* GITHUB#13196: Add support for posix_madvise to MMapDirectory: If running on Linux/macOS and Java 21
or later, MMapDirectory uses IOContext to pass suitable MADV flags to kernel of operating system.
This may improve paging logic especially when large segments are merged under memory pressure.
* GITHUB#13196, GITHUB#13222: Add support for posix_madvise to MMapDirectory: If running on
Linux/macOS and Java 21 or later, MMapDirectory uses IOContext to pass suitable MADV flags to
kernel of operating system. In particular, merging now passes POSIX_MADV_SEQUENTIAL to the readers
that are being merged, and searching passes POSIX_MADV_RANDOM to vector data files - including
quantized vector data files, HNSW graphs, stored fields data files and term vectors data files.
This may improve paging logic especially when working with large indexes under memory pressure.
(Uwe Schindler, Chris Hegarty, Robert Muir, Adrien Grand)
* GITHUB#13197: Expand support for new scalar bit levels for HNSW vectors. This includes 4-bit vectors and an option